Susanna Philipse (also "Susannah"; 8 September 1727 – 22 November 1822) was the eldest surviving daughter of Frederick Philipse II, 2nd Lord of Philipsburg Manor of Westchester County, New York.
She was, along with her elder brother Philip (1724–1768) and younger sisters Mary (1730–1825), and Margaret (1733-1752), a one-quarter heir to the roughly 250 sq mi (650 km2) "Highland Patent" of her father (later to become known as the Philipse Patent, and in time today's Putnam County of southeastern New York).
Susanna was married to Beverley Robinson, a soldier from a prominent family in the Colony of Virginia who had relocated to the Province of New York. He was a childhood friend of future American general and statesman George Washington, who was for a time during the French and Indian War an irregular guest at their home on Susanna's land on the east bank of the Hudson. It is there Washington is said to have developed an attraction to Susanna's younger sister Mary.
During the Revolution Susanna's lands and the Robinson family fortune were confiscated by the rebel government of the New York Colony. Their home became the headquarters of soon to turn treasonous Continental Army general Benedict Arnold. During an extended stay there by Washington Arnold's plans were revealed through the capture of British spymaster Major John Andre. Following his trial and sentencing Beverley Robinson was sent to Washington to plead for Andre's life. Washington refused to see him.
Following the war the Robinsons relocated to Southwest England, where in time they received a partial payment for their seized properties. Both died and were interred there.