{{Infobox river | name = Fynn | name_native = | name_native_lang = | name_other = | name_etymology = <!---------------------- IMAGE & MAP --> | image = | image_size = | image_caption = | map = | map_size = | map_caption = | pushpin_map = United Kingdom Suffolk | pushpin_map_size = | pushpin_map_caption= Location of the river mouth within Suffolk <!---------------------- LOCATION --> | subdivision_type1 = Country | subdivision_name1 = England | subdivision_type2 = | subdivision_name2 = | subdivision_type3 = Region | subdivision_name3 = Suffolk | subdivision_type4 = | subdivision_name4 = | subdivision_type5 = | subdivision_name5 = <!---------------------- PHYSICAL CHARACTERISTICS --> | length = {{convert|13.622|km|mi|abbr=on}}<ref name="Fynn Water Body">{{cite web |title=Fynn {{!}} Catchment Data Explorer {{!}} Catchment Data Explorer |url=https://environment.data.gov.uk/catchment-planning/v/c3-plan/WaterBody/GB105035040330 |website=environment.data.gov.uk |publisher=Department for Environment Food & Rural Affairs |access-date=5 October 2023}}</ref> | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= | discharge1_min = | discharge1_avg = | discharge1_max = <!---------------------- BASIN FEATURES --> | source1 = | source1_location = Witnesham<ref name="Fynn Water Body"/> | source1_coordinates= {{coord|52.2799|1.3048|display=inline}} | source1_elevation = {{convert|60|m|abbr=on}} | mouth = | mouth_location = Martlesham<ref name="Fynn Water Body"/> | mouth_coordinates = {{coord|52.07667|1.295313|display=inline,title}} | mouth_elevation = {{convert|0|m|abbr=on}} | progression = | river_system = River Deben<ref name="Fynn Water Body"/> | basin_size = | tributaries_left = | tributaries_right = | custom_label = Water Body ID | custom_data = GB105035040330<ref name="Fynn Water Body"/> | extra = }} The '''River Fynn''' is a waterway in Suffolk which joins the River Deben. Its source is to the north-west of the village of Witnesham and it joins the Deben south of Woodbridge, via Martlesham Creek.<ref name="GPS Fynn Valley">{{cite web |title=Fynn Valley Walk Route |url=http://www.gps-routes.co.uk/routes/home.nsf/RoutesLinksWalks/fynn-valley-walk-walking-route |website=www.gps-routes.co.uk |publisher=GPS Cycle and Walking Routes |access-date=5 October 2023 |language=en}}</ref>
Among its tributaries are the River Lark, whose sources are to the north of Grundisburgh, and an unnamed stream which flows east from a point north of the village of Kesgrave, through the grounds of Kesgrave Hall. Both join the Fynn to the west of Martlesham.
{{Commons}} ==References== {{reflist}}
{{DEFAULTSORT:Fynn, River}} Category:Rivers of Suffolk Fynn