Philip Martin Pro (born 1946) is a former United States federal judge.
Born in Richmond, California, Pro received an A.A. from Contra Costa Community College in 1966, a B.A. from San Francisco State University in 1968, and a J.D. from Golden Gate University School of Law in 1972. He served in the U.S. Naval Reserve from 1964 to 1968. After serving as a law clerk to the Hon. William P. Compton of the Eighth Judicial District Court of Nevada from 1972 to 1973, Pro worked as a deputy public defender in Las Vegas, Nevada from 1973 to 1975. He was an assistant U.S. Attorney of Las Vegas, Nevada from 1975 to 1978. He was in private practice in Reno, Nevada from 1978 to 1979. He was a deputy state attorney general of Nevada from 1979 to 1980. He was a chief assistant U.S. attorney of Reno, Nevada in 1980. He served as a U.S. magistrate judge for the U.S. District Court for the District of Nevada, 1980–1987
Pro is a former federal judge of the United States District Court for the District of Nevada. Pro was nominated by President Ronald Reagan on May 5, 1987, to a seat vacated by Harry E. Claiborne. He was confirmed by the United States Senate on July 22, 1987, and received his commission on July 23, 1987. He served as chief judge from 2002-2007. Pro took senior status on December 31, 2011. He retired from active judicial service on January 23, 2015.