Mr. Big Stuff is the debut studio album recorded by American singer Jean Knight, released in 1971 on the Stax label.
The album peaked at No. 8 on the R&B albums chart. It also reached No. 60 on the Billboard 200. The album features the title track, which peaked at No. 2 on the Billboard Hot 100 and No. 1 on the Hot Soul Singles chart. The album was remastered and reissued with bonus tracks in 1990 by Fantasy Records.