Crumhorn Lake

{{Infobox body of water

| name = Crumhorn Lake

| image =

| caption =

| pushpin_map = New York Adirondack Park#USA

| pushpin_map_caption = Location of Crumhorn Lake within New York State

| image_bathymetry =

| caption_bathymetry=

| location = Otsego County, New York

| coords ={{coord|42|33|28|N|74|55|18|W|region:XX-YY_type:waterbody|display=inline,title}}

| type =

| inflow =

| outflow =

| catchment =

| basin_countries =

| date-built =

| date-flooded =

| length =

| width =

| area = {{convert|62|acre}}

| depth =

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| shore =

| elevation = {{convert|1831|ft}}{{cite gnis

| id = 947874

| name = Crumhorn Lake

| accessdate = 2017-12-30}}

| frozen =

| islands =

| cities = Portlandville, New York

| reference =

}}

Crumhorn Lake is a lake located northeast of the hamlet of Portlandville in the Town of Milford in Otsego County, New York.