Greenbush, New York may refer to a few places in the U.S. state of New York:
In Rensselaer County:
- Greenbush, Rensselaer County, New York, a former town which was divided in 1855 into
- East Greenbush, New York, a town
- East Greenbush (CDP), New York, a hamlet within the town
- North Greenbush, New York, a town
- The Village of Greenbush, which in 1897 became the City of Rensselaer
- East Greenbush, New York, a town
In Rockland County:
- Greenbush, Rockland County, New York, a former name for the hamlet of Blauvelt
In Schoharie County:
- Greenbush, Schoharie County, New York, a small settlement in the town of Cobleskill