Oliver De Lancey (September 17, 1718 – October 27, 1785) was a merchant and Loyalist politician and soldier during the American Revolutionary War.

In 1766, De Lancey was one of the judges in the Pendergast case, in which the alleged leader of the Dutchess County land rebels was convicted and sentenced to death.

[3] De Lancey was a member of the provincial executive council from 1760 until the American Revolutionary War.

He joined Sir William Howe on Staten Island in 1776, and he and his brother raised and equipped the three battalions of DeLancey's Brigade, consisting of fifteen hundred Loyalist volunteers from the Province of New York.

In the fall of 1742, Oliver De Lancey secretly married Phila Franks, the colonial-born daughter of prominent and successful London-born, New York Ashkenazi Jewish immigrants.