Konnivesi

{{Infobox lake

| name = Konnivesi

| image = Konnivesi (Heinola).jpg

| alt =

| caption =

| image_bathymetry =

| alt_bathymetry =

| caption_bathymetry =

|pushpin_map=Finland

| location =

| coords = {{coord|61|10|N|26|09|E|region:FI_type:waterbody_source:GNS-enwiki|display=inline,title}}

| type =

| inflow =

| outflow =

| catchment = Kymijoki

| basin_countries = Finland

| length =

| width =

| area = {{convert|49.596|km2|abbr=on}}

| depth =

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| residence_time =

| shore = {{convert|319.88|km|abbr=on}}

| elevation = {{convert|77.4|m|abbr=on}}

| frozen = December–April

| islands = Konnisaari, Vähäsaari

| cities = Heinola, Iitti

| reference =

}}

Konnivesi is a medium-sized lake of Finland in the Kymijoki main catchment area. It is located partly in region Päijänne Tavastia, near the town Heinola, partly in region Kymenlaakso. There is a waterway crossing the Heinola town and connecting the lake to another lake Ruotsalainen.[http://www.jarviwiki.fi/w/index.php?title=Konnivesi_%2814.131.1.001%29&setlang=en Konnivesi in the Jarviwiki Web Service]. Retrieved 2014-03-02. {{in lang|en}}