List of ship launches in 1821

| For private owner.{{Cite news |title=Private Correspondence |newspaper=Caledonian Mercury |location=Edinburgh |date=25 January 1821 |issue=15507 }}

----

! 27 January

| {{flagcountry|UKGBI}}

| Thomas White

| Cowes

| {{ship

Ogle Castle|1821 ship|2}}

| For Mr. Brown.

----

! January

| {{flagcountry|UKGBI}}

| Fishburn & Brodrick

| Witby

| Terrys

| For private owner.{{Cite news |title=Advertisements & Notices |newspaper=Hull Packet |location=Hull |date=13 March 1832 |issue=2469 }}

----

! 16 February

| {{flagcountry|UKGBI}}

| R. & A. Carswell

| Greenock

| {{SS|Mountaineer|1821|2}}

| For private owner.{{Cite news |title=Private Correspondence |newspaper=Caledonian Mercury |location=Edinburgh |date=19 February 1821 |issue=15518 }}

----

! 3 March

| {{flagcountry|Russian Empire}}

| A. I. Melikhov

| Nicholaieff

| {{ship|Russian ship|Orfei|1821|2}}

| Brig

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21700 |title=Russian brig 'Orfei' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 29 March

| {{flagcountry|UKGBI}}

| Cochin

| {{HMS|Alligator|1821|2}}

| {{sclass|Atholl|corvette}}

| For Royal Navy.

----

! 4 April

| {{flagcountry|UKGBI}}

| James Brown

| Perth

| {{SY|Tourist|1821|2}}

| For Leith and Aberdeen Steam Yacht Company.{{Cite news |title=Private Correspondence |newspaper=Caledonian Mercury |location=Edinburgh |date=7 April 1821 |issue=15539 }}{{Cite news |title=Steam Vessels |newspaper=Caledonian Mercury |location=Edinburgh |date=12 April 1821 |issue=15541 }}{{Cite news |title=Steam Vessels |newspaper=Aberdeen Journal |location=Aberdeen |date=18 April 1821 |issue=3823 }}

----

! 7 April

| {{flagcountry|UKGBI}}

| Wigram & Green

| Blackwall

| {{PS|City of Edinburgh|1821|2}}

| For private owner.{{Cite news |title=Private Correspondence |newspaper=Caledonian Mercury |location=Edinburgh |date=9 April 1821 |issue=15540 }}

----

! 19 April

| {{Flagcountry|UKGBI}}

| John Scott & Co.

| Greenock

| {{SS|Majestic|1821|2}}

| For Glasgow and Liverpool Steam Packet Company.{{sfn|Mitchell|Sawyer|1990|p=375}}{{Cite news |title=Private Correspondence |newspaper=Caledonian Mercury |location=Edinburgh |date=23 April 1821 |issue=15546 }}

----

! April

| {{flagcountry|UKGBI}}

| John M. & William Gales

| Lady Frances

| Snow

| For R. Scurfield & Co.{{cite web |url=http://www.searlecanada.org/sunderland/sunderland058.html |title=SHIPBUILDERS - PAGE 16 |publisher=Searle |accessdate=20 September 2023 }}

----

! April

| {{flagcountry|UKGBI}}

| Macduff

| Macduff

| For private owner.{{Cite news |title=Advertisements & Notices |newspaper=Aberdeen Journal |location=Aberdeen |date=10 September 1823 |issue=3948 }}

----

! 1 May

| {{flagcountry|UKGBI}}

| William Denny

| Dumbarton

| {{SY|Velocity|1821|2}}

| For Aberdeen, Leith and Clyde Shipping Company.{{Cite news |title=(untitled) |newspaper=Glasgow Herald |location=Glasgow |date=4 May 1821 |issue=1916 }}{{Cite news |title=(untitled) |newspaper=Aberdeen Journal |location=Aberdeen |date=9 May 1821 |issue=3826 }}

----

! 2 May

| {{flagcountry|UKGBI}}

| Humble and Hurry

| Liverpool

| Ellen Mar

| For private owner.{{Cite news |title=(untitled) |newspaper=Liverpool Mercury |location=Liverpool |date=4 May 1821 |issue=518 }}

----

! 3 May

| {{flagcountry|UKGBI}}

| Clarke and Dixon

| Liverpool

| Hardware

| Brig

| For private owner.

----

! 3 May

| {{flagcountry|UKGBI}}

| James

| Liverpool

| Pacific

| Brig

| For private owner.

----

! 4 May

| Sulkea

| {{ship

Eleanor|1821 ship|2}}

| For private owner.

----

! 7 May

| {{flagcountry|Russian Empire}}

| B. F. Stoke

| {{ship|Russian ship|Apollon|1821|2}}

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21234 |title=Russian sloop 'Apollon' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 7 May

| {{flagcountry|Russian Empire}}

| K. A. Glazyrin

| {{ship|Russian ship|Riga|1821|2}}

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21262 |title=Russian sloop 'Riga' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 8 May

| {{flag|United States|1820}}

| Sidney Wright

| James Cropper

| For private owner.{{Cite news |title=American Launch |newspaper=Liverpool Mercury |location=Liverpool |date=8 June 1821 |issue=523 }}

----

! 15 May

| {{flagcountry|Russian Empire}}

| A. P. Antipev

| Kazan

| {{ship|Russian ship|Baku|1821|2}}

| Brig

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21747 |title=Russian brig 'Baku' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 16 May

| {{flagcountry|Russian Empire}}

| Kazan

| {{ship|Russian ship|Muravei|1821|2}}

| Tender

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21772 |title=Russian tender 'Muravei' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 17 May

| {{flag|United States|1820}}

| Washington Navy Yard

| {{USS|Shark|1821|2}}

| For United States Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=25483 |title=American schooner 'Shark' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 18 May

| {{flagcountry|Russian Empire}}

| A. M. Kurochkin

| Archangelsk

| {{ship|Russian ship|Kreiser|1821|2}}

| {{sclass|Provornyi|frigate}}

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21193 |title=Russian Fifth Rate frigate 'Kreiser' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 18 May

| {{flagcountry|UKGBI}}

| {{HMS|Martin|1821|2}}

| {{sclass|Martin|sloop}}

| For Royal Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=5293 |title=British sloop 'Martin' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 18 May

| {{flagcountry|Russian Empire}}

| A. M. Kurochkin

| Archangelsk

| {{ship|Russian ship|Sviatoi Andrei|1821|2}}

| {{sclass|Selafail|ship of the line}}

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=10597 |title=Russian Third Rate ship of the line 'Siatoi Andrei' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 31 May

| {{flag|France}}

| Bayonne

| {{ship|French ship|La Lyonnaise|1821|2}}

| {{sclass|Iris|schooner}}

| For French Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=30530 |title=French schooner 'La Lyonnaise' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 31 May

| {{flagcountry|UKGBI}}

| Cortney

| Chester

| The Liverpool

| For private owner.{{Cite news |title=Varieties |newspaper=Liverpool Mercury |location=Liverpool |date=8 June 1821 |issue=523 }}

----

! May

| {{flagcountry|UKGBI}}

| Hope

| For private owner.{{Cite news |title=Avertisement & Notices |newspaper=Aberdeen Journal |location=Aberdeen |date=6 March 1822 |issue=3869 }}

----

! 1 June

| {{flagcountry|UKGBI}}

| Plymouth Dockyard

| {{HMS|Lyra|1821|2}}

| {{sclass|Cherokee|brig-sloop}}

| For Royal Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=23260 |title=British sloop 'Lyra' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 1 June

| {{flagcountry|UKGBI}}

| {{HMS|Rose|1821|2}}

| For Royal Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=20876 |title=British sloop 'Rose' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 2 June

| {{flagcountry|UKGBI}}

| James Lang

| Dumbarton

| {{SY|Brilliant|1821|2}}

| For Leith and Aberdeen Steam Yacht Company.{{Cite news |title=Private Correspondence |newspaper=Caledonian Mercury |location=Edinburgh |date=7 June 1821 |issue=15563 }}

----

! 9 June

| {{flagcountry|UKGBI}}

| Richards

| Hythe

| Highland Lassy

| Yacht

| For General Mackenzie.{{Cite news |title=Postscript |newspaper=Hampshire/Portsmouth Telegraph |location=Portsmouth |date=11 June 1821 |issue=1131 }}

----

! 14 June

| {{flag|France}}

| Bayonne

| {{ship|French ship|La Provencale|1821|2}}

| {{Sclass|Iris|schooner}}

| For French Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=30531 |title=French schooner 'La Provencale' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 16 June

| {{flagcountry|UKGBI}}

| George Parkin

| Chatham Dockyard

| {{HMS|Latona|1821|2}}

| {{sclass|Leda|frigate}}

| For Royal Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=5039 |title=British Fifth Rate frigate 'Latona' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 17 June

| {{flagcountry|UKGBI}}

| Menzies & Son

| Leith

| {{SS|Queen Margaret|1821|2}}

| For private owner.{{Cite news |title=Queensferry Passage |newspaper=Caledonian Mercury |location=Edinburgh |date=21 June 1821 |issue=15569 }}

----

! 18 June

| {{flagcountry|UKGBI}}

| J. Wood & Co.

| Port Glasgow

| {{PS|James Watt|1821|2}}

| For London and Edinburgh Steam Packet Company.{{Cite news |title=Avertisements & Notices |newspaper=Glasgow Herald |location=Glasgow |date=5 June 1821 |issue=1928 }}{{Cite news |title=(untitled) |newspaper=Glasgow Herald |location=Glasgow |date=22 June 1821 |issue=1930 }}

----

! 20 June

| {{flagcountry|UKGBI}}

| R. Steele & Son

| Greenock

| {{SS|Eclipse|1821|2}}

| For Napier & Langtry.{{Cite news |title=Travelling by Steam |newspaper=Caledonian Mercury |location=Edinburgh |date=25 June 1821 |issue=15571 }}

----

! 23 June

| {{flag|United States|1820}}

| Philadelphia Navy Yard

| {{USS|Dolphin|1821|2}}

| For United States Navy.

----

! 25 June

| {{flagcountry|Russian Empire}}

| A. I. Mekikhov

| Kherson

| {{ship|Russian ship|Imperator Frants|1821|2}}

| First rate

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=10535 |title=Russian First Rate ship of the line 'Imperator Frants' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 29 June

| {{flagcountry|UKGBI}}

| Smith

| Eastham

| {{SS|Lady Stanley|1821|2}}

| For private owner.{{Cite news |title=Eastham Packet |newspaper=Liverpool Mercury |location=Liverpool |date=6 July 1821 |issue=527 }}

----

! 30 June

| {{flagcountry|UKGBI}}

| {{HMS|Plover|1821|2}}

| {{sclass|Cherokee|brig-sloop}}

| For Royal Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=5834 |title=British sloop 'Plover' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! June

| {{flagcountry|UKGBI}}

| Relief

| Brig

| For private owner.{{Cite news |title=Advertisements and Notices |newspaper=Liverpool Mercury |location=Liverpool |date=22 February 1822 |issue=560 }}

----

! 1 July

| {{flag|France}}

| Bresst

| {{ship|French ship|L'Amazone|1821|2}}

| {{sclass|Jeanne d'Arc|frigate}}

| For French Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=28522 |title=French Fourth Rate frigate 'L'Amazone' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 17 July

| {{flagcountry|UKGBI}}

| Buckle and Davies

| Chepstow

| Edward Protheroe

| For private owner.{{Cite news |title=Ship News |newspaper=Bristol Mercury |location=Bristol |date=28 July 1821 |issue=1636 }}

----

! 20 July

| {{flagcountry|UKGBI}}

| Pembroke Dockyard

| {{HMS|Nereus|1821|2}}

| Modified {{sclass|Leda|frigate}}

| For Royal Navy.

----

! 31 July

| {{flagcountry|UKGBI}}

| Deptford Dockyard

| {{HMS|Woodlark|1821|2}}

| {{sclass|Quail|schooner}}

| For Royal Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=7440 |title=British schooner 'Woodlark' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 7 August

| {{flagcountry|Russian Empire}}

| I. Y. Osminin

| Sevastopol

| {{ship|Russian ship|Sokol|1821|2}}

| Cutter

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21710 |title=Russian cutter 'Sokol' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 11 August

| {{flagcountry|Russian Empire}}

| B. F. Stoke

| {{ship|Russian ship|Alexander Nevskii|1821|2}}

| {{sclass|Provornyi|frigate}}

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21194 |title=Russian Fifth Rate frigate 'Alexander Nevskii' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 15 August

| {{flagcountry|UKGBI}}

| Francis Symons

| Falmouth

| George the Fourth

| Packet ship

| For private owner.{{Cite news |title=Falmouth, August 6th, 1821 |newspaper=Trewman's Exeter Flying Post |location=Exeter |date=9 August 1821 |issue=2915 }}

----

! 27 August

| {{flagcountry|United Kingdom of the Netherlands}}

| Amsterdam

| {{HNLMS|Algiers|1821|2}}

| Frigate

| For Royal Netherlands Navy.{{Cite news |title=Amsterdam, Aug. 27 |newspaper=Morning Chronicle |location=London |date=1 September 1821 |issue=16340 }}

----

! 28 August

| {{flag|France}}

| Cherbourg

| {{ship|French ship|La Pomone|1821|2}}

| {{sclass|Pomone|corvette}}

| For French Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=30370 |title=French corvette 'La Pomone' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 29 August

| {{flagcountry|UKGBI}}

| Sandon

| Stourport-on-Severn

| Sovereign

| For Captain Sandon.{{Cite newspaper The Times |title=(untitled) |date=4 September 1821 |page=3 |issue=11342 |column=E }}{{Cite news |title=Severn Steam Packet |newspaper=Morning Chronicle |location=London |date=24 September 1821 |issue=16359 }}

----

! August

| {{flagcountry|UKGBI}}

| Philip Laing

| Cecrops

| For Fletcher Bros.{{cite web |url=http://www.searlecanada.org/sunderland/sunderland120.html |title=SHIPS BUILT IN THE 1820s |publisher=Searle |accessdate=20 September 2023 }}

----

! August

| {{flag|United States|1820}}

| Washington Navy Yard

| {{USS|Grampus|1821|2}}

| For Royal Navy.

----

! 11 September

| {{flagcountry|UKGBI}}

| Harwich

| Essex

| Lifeboat

| For Harwich Lifeboat Company.{{Cite news |title=Harwich, August 3 |newspaper=Ipswich Journal |location=Ipswich |date=4 August 1821 |issue=4345 |page=3 }}{{Cite news |title=Advertisements & Notices |newspaper=Ipswich Journal |location=Ipswich |date=11 August 1821 |issue=4346 }}

----

! 13 September

| {{flagcountry|UKGBI}}

| Jabez Bayley

| Ipswich

| {{ship|HEIC Ship|Sir David Scott|1821|2}}

| For British East India Company.{{Cite news |title=(untitled) |newspaper=Morning Chronicle |location=London |date=20 September 1821 |issue=16356 }}{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=31629 |title=British Merchant east indiaman 'Sir David Scott' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 27 September

| {{flagcountry|UKGBI}}

| Jabez Bayley

| Ipswich

| {{ship|HEIC ship|William Fairlie|1821|2}}

| For British East India Company.{{Cite news |title=The Mirror of Fashion |newspaper=Morning Chronicle |location=London |date=2 October 1821 |issue=16366 }}{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=28636 |title=British Merchant east indiaman 'William Fairlie' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 11 October

| {{flagcountry|UKGBI}}

| Charles David Gordon

| Deptford

| {{ship|HEIC ship|Berwickshire|1821|2}}

| For British East India Company.{{Cite news |title=The Mirror of Fashion |newspaper=Morning Chronicle |location=London |date=12 October 1821 |issue=16375 }}{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=29066 |title=British Merchant east indiaman 'Berwickshire' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 12 October

| {{flagcountry|UKGBI}}

| {{HMS|Ferret|1821|2}}

| {{sclass|Cherokee|brig-sloop}}

| For Royal Navy.{{Cite news |title=Ship News |newspaper=Morning Chronicle |location=London |date=16 October 1821 |issue=16378 }}

----

! 13 October

| {{flagcountry|UKGBI}}

| Brindley

| {{ship|HEIC ship|Macqueen|1821|2}}

| For British East India Company.{{Cite newspaper The Times |title=(untitled) |date=19 October 1821 |page=3 |issue=11381 |column=E }}{{Cite news |title=Launch of the Macqueen East Indiaman |newspaper=Morning Chronicle |location=London |date=25 October 1821 |issue=16386 }}

----

! 18 October

| {{flag|United States|1820}}

| William Tell

| For Samuel Hicks.{{Cite news |title=News, Foreign & Domestic |newspaper=Liverpool Mercury |location=Liverpool |date=16 November 1821 |issue=546 }}

----

! 26 October

| {{flagcountry|UKGBI}}

| Pembroke Dockyard

| {{HMS|Reynard|1821|2}}

| {{sclass|Cherokee|brig-sloop}}

| For Royal Navy.

----

! 28 October

| {{flagcountry|Russian Empire}}

| B. F. Stoke

| {{ship|Russian ship|Okhtenka|1821|2}}

| {{sclass|Aiaks|sloop}}

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21260 |title=Russian sloop 'Okhtenka' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 30 October

| J. Thomas

| Howrah

| {{ship

Recovery|1821 ship|2}}

| For private owner.

----

! 31 October

| {{flagcountry|UKGBI}}

| Calcutta

| {{ship

Calder|1821 ship|2}}

| Brig

| For Barretto & Sons.

----

! October

| {{flagcountry|UKGBI}}

| W. Wake

| Storey

| For private owner

----

! 2 November

| {{flagcountry|Russian Empire}}

| A. I. Melikhov

| Nicholaieff

| {{ship|Russian ship|Pospeshnyi|1821|2}}

| Fourth rate

| For Imperial Russian Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=21681 |title=Russian Fourth Rate frigate 'Pospeshnyi' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 10 November

| {{flagcountry|UKGBI}}

| Money Wigram

| Blackwall Yard

| {{ship|HEIC ship|Duchess of Athol|1821|2}}

| For British East India Company.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=29365 |title=British Merchant east indiaman 'Duchess of Atholl' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! 10 November

| Jamsetjee Bomanjee Wadia

| Bombay Dockyard

| {{HMS|Ganges|1821|2}}

| {{sclass|Canopus|ship of the line}}

| For Royal Navy.

----

! 14 November

| {{flagcountry|UKGBI}}

| Ritchie and Laine

| Lough Neagh

| {{SS|Marchioness of Donegall|1821|2}}

| For private owner.{{Cite news |title=Provincial Intelligence |newspaper=Freeman's Journal |location=Dublin |date=26 November 1821 }}

----

! November

| {{flagcountry|UKGBI}}

| L. Crown

| Erato

| For Blair & Co..{{cite web |url=http://www.searlecanada.org/sunderland/sunderland050.html |title=SHIPBUILDERS - PAGE 10 |publisher=Searle |accessdate=20 September 2023 }}

----

! 11 December

| John Scott & Co.

| Calcutta

| {{ship

Nimrod|1821 ship|2}}

| For John Scott & Co.

----

! 11 December

| {{flagcountry|UKGBI}}

| Sheerness Dockyard

| {{HMS|Opossum|1821|2}}

| {{sclass|Cherokee|brig-sloop}}

| For Royal Navy.{{Cite news |title=Ship News |newspaper=Morning Chronicle |location=London |date=17 December 1821 |issue=16431 }}

----

! 22 December

| {{flag|United States|1820}}

| Columbia

| For private owner.{{Cite news |title=Varieties |newspaper=Liverpool Mercury |location=Liverpool |date=25 January 1822 |issue=556 }}

----

! 25 December

| {{flag|United States|1820}}

| Smith, Blossom, and Denman

| Florida

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Aaron Manby

| Tipton and Rotherhithe

| Aaron Manby

| For Charles Napier.

----

! Unknown date

| {{flagcountry|UKGBI}}

| R. Spearman

| Albany

| For private owner.{{cite web |url=http://www.searlecanada.org/sunderland/sunderland120.html |title=SHIPS BUILT IN THE 1820s |publisher=Searle |accessdate=20 September 2023 }}

----

! Unknown date

| Bombay

| {{ship|HEIC ship|Bombay|1821|2}}

| Gunboat

| For British East India Company.{{cite book|last=Wadia |first=R. A. |orig-year=1957 |year=1986 |title=The Bombay Dockyard and the Wadia Master Builders |publisher=Foudroyant Committee of The Society for Nautical Research |location=Bombay |page=341 | url=https://archive.org/details/in.ernet.dli.2015.57463/page/n457/mode/2up }}

----

! Unknown date

| 22px Unknown

| {{ship

City of Kingston|1821 ship|2}}

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| T. Brocklebank

| Deptford

| {{PS|Eagle|1821|2}}

| For C. Bell, T. Brocklebank and others.{{cite web |url=http://shippingandshipbuilding.uk/view.php?year_built=&builder=11025&ref=222907&vessel=EAGLE |title=Eagle |publisher=Shipping & Shipbuilding Research Trust |accessdate=4 October 2024 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| Newcastle upon Tyne

| {{ship

Florentia|1821 ship|2}}

| For British East India Company.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=29699 |title=British Merchant east indiaman 'Florentia' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| John M. & William Gales

| Ford

| Snow

| For Thomas Allen.

----

! Unknown date

| Bombay

| {{ship|HEIC ship|Hastings|1821|2}}

| Frigate

| For British East India Company.

----

! Unknown date

| {{flagcountry|United Kingdom of the Netherlands}}

| Rotterdam

| {{HNLMS|Hekla|1821|2}}

| Sixth rate

| For Royal Netherlands Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=1461 |title=Duth Sixth Rate ship 'Hekla' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| J. Bankham

| {{PS|Hero|1821|2}}

| For W. Cawthorn, R. Cheeswright, J. Pearson & others.{{cite web |url=http://shippingandshipbuilding.uk/view.php?year_built=&builder=11305&ref=222346&vessel=HERO |title=Hero |publisher=Shipping & Shipbuilding Research Trust |accessdate=26 September 2024 }}

----

! Unknown date

| {{flagcountry|United Kingdom of the Netherlands}}

| Rotterdam

| {{HNLMS|Kemphaan|1821|2}}

| For Royal Netherlands Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=1752 |title=Dutch ship 'Kemphaan' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| John M. & William Gales

| Lady Louisa

| Snow

| For John M. & William Gales.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Elias Evans

| {{PS|Lightning|1821|2}}

| For private owner.{{cite journal |url=https://play.google.com/books/reader?id=XwgAAAAAMAAJ&pg=GBS.PA101&hl=en_GB |title=The History of Paddle Wheel Steam Navigation |journal=The Marine Engineer |location=London |date=1 July 1885 |pages=101-04 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| Elias Evans

| {{PS|Medusa|1821|2}}

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Elias Evans

| {{PS|Meteor|1821|2}}

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Mr. Evans

| Rotherhithe

| {{HMS|Monkey|182|2}}

| Paddle tug

| For Royal Navy.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Philip Laing

| Nepos

| For Trader & Co.

----

! Unknown date

| {{flag|France}}

| Dunkerque

| {{HNLMS|Pellikaan|1821|2}}

| Rochester, Massachusetts

| For Royal Netherlands Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=1785 |title=Dutch ship 'Pellikaan' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! Unknown date

| {{flag|United States|1820}}

| {{ship

Phoenix|1821 whaler|2}}

| Whaler

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Falmouth

| {{ship

Prince Regent|1821 packet|2}}

| Packet ship

| For Post Office Packet Service.

----

! Unknown date

| {{flagcountry|United Kingdom of the Netherlands}}

| Rotterdam

| {{HNLMS|Proserpina|1821|2}}

| Sixth rate

| For Royal Netherlands Navy.{{cite web |url=https://threedecks.org/index.php?display_type=show_ship&id=1553 |title=Dutch Sixth Rate ship 'Proserpina' (1821) |publisher=Threedecks |accessdate=20 September 2023 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| T. Burn

| Rose

| Brig

| For G. Hogg.

----

! Unknown date

| {{flagcountry|UKGBI}}

| John M. & William Gales

| Sisters

| Snow

| For John M. & William Gales.

----

! Unknown date

| {{flagcountry|UKGBI}}

| Southwick

| Susan

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| W. Adamson

| Sylph

| brig

| For W. Adamson.

----

! date

| {{flagcountry|UKGBI}}

| builder

| location

| {{SS

1885|2}}

| For .{{cite journal |url=https://play.google.com/books/reader?id=XwgAAAAAMAAJ&pg=GBS.PA101&hl=en_GB |title=The History of Paddle Wheel Steam Navigation |journal=The Marine Engineer |location=London |date=1 July 1885 |pages=101-04 }}

----

! Unknown date

| {{flagcountry|UKGBI}}

| Elias Evans

| {{PS|Union|1821|2}}

| For private owner.

----

! Unknown date

| {{flagcountry|UKGBI}}

| John M. & William Gales

| Vasic

| Snow

| For R. Scurfield

----

! Unknown date

| {{flagcountry|UKGBI}}

| Philip Laing

| Zeno