| Leonard Page Moore | |
| Office: | Senior Judge of the United States Court of Appeals for the Second Circuit |
| Term Start: | March 1, 1971 |
| Term End: | December 7, 1982 |
| Office1: | Judge of the United States Court of Appeals for the Second Circuit |
| Term Start1: | September 6, 1957 |
| Term End1: | March 1, 1971 |
| Appointer1: | Dwight D. Eisenhower |
| Predecessor1: | Jerome Frank |
| Successor1: | Walter R. Mansfield |
| Birth Name: | Leonard Page Moore |
| Birth Date: | 2 July 1898 |
| Birth Place: | Evanston, Illinois, U.S. |
| Death Place: | Mystic, Connecticut, U.S. |
| Education: | Amherst College (AB) Columbia University (LLB) |
Leonard Page Moore (July 2, 1898 – December 7, 1982) was a United States circuit judge of the United States Court of Appeals for the Second Circuit.
Born in Evanston, Illinois, Moore was in the United States Naval Reserve from 1918 to 1919, and then received an Artium Baccalaureus from Amherst College in 1919 and a Bachelor of Laws from Columbia Law School in 1922. He entered private practice in New York City, New York from 1922 to 1953. From 1953 to 1957, Moore was United States Attorney for the Eastern District of New York.
On September 6, 1957, Moore received a recess appointment from President Dwight D. Eisenhower to a seat on the United States Court of Appeals for the Second Circuit vacated by the death of Judge Jerome Frank. Formally nominated by President Eisenhower to the same seat on January 13, 1958, Moore was confirmed by the United States Senate on February 25, 1958, and received his commission on February 27, 1958. He assumed senior status on March 1, 1971, serving in that capacity until his death on December 7, 1982, in Mystic, Connecticut.
Michael S. Greco, former president of the American Bar Association, clerked for Moore.