Viscount Rothermere

{{short description|Viscountcy in the Peerage of the United Kingdom}}

{{Infobox nobility title

| name = Viscount Rothermere

| image = File:Coronet of a British Viscount.svg File:Rothermere Escutcheon.png

| image_size =

| alt =

| caption = Arms of the 4th Viscount

| creation_date = 1919

| creation =

| monarch = George V

| peerage = Peerage of the United Kingdom

| baronetage =

| first_holder = Harold Harmsworth, 1st Baron Harmsworth

| last_holder =

| present_holder = Jonathan Harmsworth, 4th Viscount Rothermere

| heir_apparent = Vere Richard Jonathan Harold Harmsworth

| heir_presumptive =

| remainder_to =

| subsidiary_titles = Baron Rothermere

| status =

| extinction_date =

| family_seat = Ferne House

| former_seat =

| motto = Bene Qui Sedulo (He who acts diligently acts well)

| footnotes =

}}

{{Use dmy dates|date=April 2022}}

Image:Lord Rothermere.jpg

Viscount Rothermere, of Hemsted in the county of Kent,{{Cite web|url=https://www.thegazette.co.uk/London/issue/31427/page/8221|title = Page 8221 | Issue 31427, 1 July 1919 | London Gazette | the Gazette}}{{cite web| url = http://www.cracroftspeerage.co.uk/rothermere1919.htm| url-status = live| archive-url = https://web.archive.org/web/20141206201052/http://www.cracroftspeerage.co.uk/online/content/rothermere1919.htm| archive-date = 2014-12-06| title = Rothermere, Viscount (UK, 1919)}} is a title in the Peerage of the United Kingdom. It was created in 1919 for the press lord Harold Harmsworth, 1st Baron Harmsworth.{{London Gazette|issue= 31427 |date= 1 July 1919 |page=8221 |city= London }} He had already been created a baronet, of Horsey in the County of Norfolk, on 14 July 1910,{{London Gazette|issue= 28400 |date= 26 July 1910 |page=5392 |city= London }} and Baron Rothermere, of Hemsted in the County of Kent, in 1914.{{London Gazette|issue= 28797 |date= 30 January 1914 |page=810 |city= London }} Every holder of the titles has served as chairman of Daily Mail and General Trust plc. {{As of|2022}} the titles are held by the first Viscount's great-grandson, the fourth Viscount, who succeeded his father in 1998.

The first Viscount Rothermere was the younger brother of Alfred Harmsworth, 1st Viscount Northcliffe, and the elder brother of Cecil Harmsworth, 1st Baron Harmsworth, Sir Leicester Harmsworth, 1st Baronet, and Sir Hildebrand Harmsworth, 1st Baronet.

The family seat is Ferne House, near Donhead St Andrew, Wiltshire.