Terence Hallinan (December 4, 1936 – January 17, 2020) was an American attorney and politician from San Francisco, California. He was the second of six sons born to Progressive Party presidential candidate Vincent Hallinan and his wife, Vivian (Moore) Hallinan. Hallinan was educated at the London School of Economics, University of California, Berkeley, and University of California, Hastings College of the Law. He practiced privately in San Francisco.