River Rat

{{Short description|River in Suffolk, England}}

{{About||the album by Upchurch|River Rat (album)|the film|The River Rat|the rodent|Coypu}}

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

{{Infobox river

| name = Rat

| name_native =

| name_native_lang =

| name_other = Rattlesden River

| name_etymology =

| image =

| image_size =

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| map =

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| pushpin_map = United Kingdom Suffolk

| pushpin_map_size =

| pushpin_map_caption= Location of the river mouth within Suffolk

| subdivision_type1 = Country

| subdivision_name1 = England

| subdivision_type2 =

| subdivision_name2 =

| subdivision_type3 = Region

| subdivision_name3 = Suffolk

| subdivision_type4 =

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| subdivision_type5 =

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| length = {{convert|15.5|km|mi|abbr=on}}

| width_min =

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| discharge1_location=

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| source1 =

| source1_location = Felsham

| source1_coordinates= {{coord|52.1663|0.8486|display=inline}}

| source1_elevation = {{convert|80|m|abbr=on}}

| mouth =

| mouth_location = Stowmarket

| mouth_coordinates = {{coord|52.1822|1.0071|display=inline,title}}

| mouth_elevation = {{convert|26|m|abbr=on}}

| progression =

| river_system = River Gipping

| basin_size =

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}}

The River Rat is a river in the county of Suffolk in East Anglia, England.{{cite web | url=http://suffolk.activeboard.com/t23219673/river-rat/ | last=Cooper | first=John | title=River Rat | website=Suffolk Activeboard | date=17 December 2008 | accessdate=2 November 2023}}

Its source is to the south of the village of Felsham, and is the major tributary of the River Gipping. The River Rat joins the River Gipping at Pikes Meadow in Stowmarket.

The river flows through the village of Rattlesden, and is also known as the Rattlesden River.Ordnance Survey of Great Britain. 1:25000.