Louis "Sabu" Martinez (July 14, 1930 – January 13, 1979) was an American conguero and percussionist. A prominent player in the Cubop movement in the 1950s, Martinez appeared on many important recordings and live performances during that period. Martinez also recorded several Latin jazz albums, now recognized as classics of the genre.

Born in New York City, Martinez made his professional debut in 1941 at age 11. He replaced Chano Pozo in Dizzy Gillespie's orchestra in 1948, and began performing with Benny Goodman's Bebop Orchestra in 1949. Over the next 15 years, Martinez worked with Charlie Parker, Duke Ellington, Count Basie, J. J. Johnson, Horace Silver, Thelonious Monk, Charles Mingus, Mary Lou Williams, Lionel Hampton, Noro Morales, Marcelino Guerra, Esy Morales, the Lecuona Cuban Boys, Miguelito Valdés, Tito Rodríguez, and the Joe Loco Trio. He also worked with vocalists Tony Bennett, Sammy Davis, Jr., and Harry Belafonte.