Norris Jones, better known as Sirone (born September 28, 1940) is an American jazz bassist and composer.
Born in Atlanta, Georgia, Sirone worked in Atlanta late in the 1950s and early in the 1960s with The Group alongside George Adams; he also recorded with R&B musicians such as Sam Cooke and Smokey Robinson. He moved to New York City in the middle of the 1960s, where he co-founded the Untraditional Jazz Improvisational Team with Dave Burrell. He also worked with Marion Brown, Gato Barbieri, Pharoah Sanders, Noah Howard, Sonny Sharrock, Sunny Murray, Albert Ayler, Archie Shepp, and Sun Ra.
He co-founded the Revolutionary Ensemble with Leroy Jenkins and Frank Clayton in 1971; Jerome Cooper later replaced Clayton in the ensemble, which was active for much of the decade. In the 1970s and early 1980s Sirone recorded with Clifford Thornton, Roswell Rudd, Dewey Redman, Cecil Taylor, and Walt Dickerson.
In the 1980s, he was member of Phalanx, a group with guitarist James "Blood" Ulmer, drummer Rashied Ali, and tenor saxophonist George Adams.