Thomas Selby (Tim) Ellis III (born May 15, 1940, Bogotá, Colombia), an American jurist. Ellis is currently serving as judge on the United States District Court in the Eastern District of Virginia.

Ellis was educated at Princeton University where he earned a B.S.E. in 1961.

Ellis served in the United States Navy as a Naval aviator from 1961 to 1966. He flew a wide range of historically significant aircraft during this time, including: