Larry Klein (born 1956) is a music producer, songwriter and bass guitar player, commonly known for being the frequent musical collaborator, and ex-husband, of Joni Mitchell.
He began his musical career while still in his teens, as a session musician, playing bass guitar on a string of albums, most notably several by jazz trumpeter Freddie Hubbard.
Klein met Mitchell when he was hired as a bassist and sound engineer for her 1982 album Wild Things Run Fast. The two quickly became romantically attached, and were married in November 1982. He helped produce that album, as well as her next four, occasionally contributing his own musical compositions to which Mitchell would add lyrics. It was during the recording of Turbulent Indigo, in 1994, that their marriage broke apart. He has continued to be involved, in various capacities, in the production of her albums.