Casimir Theodor Goerck (born c.1755 – died November 19 or December 11, 1798) was one of a handful of officially recognized "city surveyors" for New York City from 1788 until his death from yellow fever in 1798. Goerck was related to the Roosevelt family by marriage, having married Elizabeth Roosevelt, by whom he had two children, a daughter, Henrietta, and a son, Theodore.