Sittin' In is the debut studio album by singer-songwriters Loggins and Messina, released in 1971.

[3] MFSL released an audiophile version of Sittin' In on the label's silver compact disc series in 1989.

In 1994, Columbia Records' Sony Mastersound division also did their own remastering and released it as a gold CD.

A new remastering by Kevin Gray was released as a vinyl-only pressing on 180-gram audiophile vinyl by Friday Music on May 10, 2011.

In 2015, it was released by the Audio Fidelity label on a hybrid SACD that was mastered by Kevin Gray.