Leland Bruce Sklar is an American bassist and session musician. Sklar rose to prominence as a member of James Taylor's backing band, which coalesced into a group in its own right, The Section, which supported so many of Asylum Records' artists that they became known as Asylum's de facto house band, as those artists became iconic singer-songwriters of the 1970s.

A session musician is a musician hired to perform in a recording session or a live performance. The term sideman is also used in the case of live performances, such as accompanying a recording artist on a tour. Session musicians are usually not permanent or official members of a musical ensemble or band.