Potton Brook

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

{{Infobox river

| name = Potton Brook

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| image = Potton Park - geograph.org.uk - 626492.jpg

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| image_caption = Horse Brook tributary to Potton Brook on west side of Henry Smith Playfields, Potton

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| subdivision_type1 = Country

| subdivision_name1 = England

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| subdivision_type3 = Unitary Authority

| subdivision_name3 = Central Bedfordshire

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| discharge1_location= Sandy

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| source1 =

| source1_location = east of Gamlingay, Cambridgeshire, England

| source1_coordinates= {{coord|52|9|5.13|N|0|9|39.54|W|display=inline}}

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| mouth =

| mouth_location = Bedfordshire, England

| mouth_coordinates = {{coord|52|6|48|N|0|16|37|W|display=inline,title}}

| mouth_elevation = {{convert|25|m|abbr=on}}

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Potton Brook rises east of Gamlingay, Cambridgeshire, and flows southwest and then south through Potton{{cite web|url=http://www.letsgo.org.uk/walk/Potton-SuttonCircularWalk.aspx|title=Potton-Sutton Circular Walk|publisher=Ivel Countryside project and Befordshire County Council|accessdate=4 January 2017}} and the John O'Gaunt Golf Club and into Sutton, Bedfordshire. Potton Brook curves west and northwest, and joins the River Ivel northeast of Lower Caldecote.

Potton Brook flows along the West Boundary of the Henry Smith playing fields in Potton. On West side of the playing fields is the smaller Horse Brook which flows into Potton Brook.

File:Ford and bridge, Sutton, Beds - geograph.org.uk - 174993.jpg|A packhorse bridge and ford across Potton Brook at Sutton in Bedfordshire