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
In Rockland County: Greenbush was one of the former names for the hamlet of Blauvelt, in Rockland County, New York
In Schoharie County: Greenbush, Schoharie County, New York, a small settlement in the town of Cobleskill