Bucklesham Mill River

{{Short description|Tributary of the River Deben, England}}

{{Infobox river

| name = Bucklesham Mill River

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| name_other = Mill River

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| image = Bucklesham former Watermill with Mill River in between, geograph-6836355.jpg

| image_size = 200px

| image_caption = Former watermill in 2021 from which the river derives its name

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| map = Bucklesham Mill River Water Body (2024).png

| map_size = 200px

| map_caption = Defra map of Bucklesham Mill River Water Body, 2024

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| length = {{cvt|11.3|km}}

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| mouth = River Deben

| mouth_location = Kirton Creek

| mouth_coordinates = {{coord|52.0270|1.3439|format=dms|type:river_region:GB|display=inline,title}}

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| basin_size = {{cvt|46.298|km2}}

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Bucklesham Mill River – sometimes referred to simply as Mill River – is a tributary of the River Deben in Suffolk, England.{{cite web |title=Bucklesham Mill River in Suffolk |url=https://www.landscapebritain.co.uk/rivers/suffolk/bucklesham-mill-river/ |website=www.landscapebritain.co.uk |publisher=munki-boy design |access-date=3 April 2024}} It is {{cvt|11.3|km}} long and with the Newbourne Stream which flows into it at Newbourne it constitutes the Bucklesham Mill River Water Body with a catchment area of {{cvt|46.298|km2}}.{{cite web |title=Bucklesham Mill River {{!}} Catchment Data Explorer {{!}} Catchment Data Explorer |url=https://environment.data.gov.uk/catchment-planning/WaterBody/GB105035040280 |website=environment.data.gov.uk |publisher=DEFRA |access-date=3 April 2024}}

The river gets its name from the Bucklesham watermill, located on Watermill Road where it crosses the river leading to Newbourne.

The river rises at a number of locations on the outskirts of Ipswich and after flowing through diverse varieties of landscape it reaches the River Deben at Kirton Creek:{{cite book |last1=Hemphill |first1=P. |last2=Seagon |first2=T. |title=Ecological Assessment Suffolk Coastal District Council County Wildlife Site Review 2009 |date=2009 |publisher=Suffolk Coastal District Council |location=Woodbridge |url=https://www.eastsuffolk.gov.uk/assets/Planning/Suffolk-Coastal-Local-Plan/Document-Library/Environment/CountyWildlifeSitesReview2009.pdf}} The river acts as a natural wildlife corridor linking several County Wildlife Sites:

• The Mount
• Brightwell Gazing Meadows
• Valley Farm Meadow