Lively Run

{{Use American English|date=February 2025}}

{{Infobox river

| name = Lively Run

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| subdivision_type1 = Country

| subdivision_name1 = United States

| subdivision_type2 = State

| subdivision_name2 = New York

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| mouth = Cayuga Lake

| mouth_location = Interlaken Beach, New York, United States

| mouth_coordinates = {{coord|42|37|48|N|76|41|17|W|display=inline,title}}

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| basin_size_mi2 = 1.97

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Lively Run is a river located in Seneca County, New York. It flows into Cayuga Lake by Interlaken Beach, New York.{{cite web

| url = https://waterdata.usgs.gov/nwis/inventory/?site_no=04234036&agency_cd=USGS&

| title = Lively run

| date = 1998

| website = usgs.gov

| publisher = usgs

| access-date = 30 May 2017

| quote = data}}