Timothy T. Lockwood (1810–1870) was Mayor of the City of Buffalo, New York, serving 1858–1859. He was born in North East, New York in 1810. In the early 1830s, he studied medicine at in Philadelphia, Pennsylvania. He returned to Buffalo around 1842 and became a member of the Erie County Medical Society. In 1851, Lockwood was appointed city health physician under Mayor James Wadsworth. He was married to Charlotte of Hamburg, New York; she died and he re-married on October 25, 1869, this time to Louise C. Francher.