Abraham Ostrander (September 8, 1725 - March 31, 1811) was a farmer in Schodack, New York, and an officer in the Continental Army during the American Revolution.
Son of Theunis Ostrander (baptized January 16, 1691 - May 1742) and Maritje Suyland.
- Spouse: Elizabeth Ostrander (1732-1823)
- Child: Johannes A. Ostrander (1761-1840)