Haynes Brook

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

{{Infobox river

| name = Haynes Brook

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| subdivision_type1 = Country

| subdivision_name1 = United States

| subdivision_type2 = State

| subdivision_name2 = New York

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| mouth = Mohawk River

| mouth_location = Hillside, New York

| mouth_coordinates = {{coord|43|21|33|N|75|24|54|W|display=inline,title}}{{cite gnis

| id = 942093

| name = Haynes brook

| accessdate = 2017-10-13 }}

| mouth_elevation = {{convert|739|ft|abbr=on}}

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| basin_size_mi2 = 3.75

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Haynes Brook flows into the Mohawk River in Hillside, New York.{{cite web

| url = https://waterdata.usgs.gov/nwis/nwismap/?site_no=0133579705&agency_cd=USGS

| title = Haynes Brook

| date = 1998

| website = usgs.gov

| publisher = usgs

| access-date = 18 April 2017

| quote = data}}