"Not Tonight" is a song performed by the American rapper Lil' Kim featuring Jermaine Dupri for her debut studio album Hard Core (1996).

A remix was released the following year featuring female rappers Da Brat, Missy "Misdeameanor" Elliott, Angie Martinez, and the late singer Lisa "Left Eye" Lopes for the Nothing to Lose soundtrack.

The original version of "Not Tonight" was featured on Lil' Kim's first album Hard Core.

The song is about Lil' Kim feeling blasé about traditional vaginal intercourse and preferring a man perform cunnilingus on her, presumably at least for that evening.

It also features guest appearances from other female celebrities including Mary J. Blige, T-Boz, Queen Latifah, SWV, Xscape, Blaque, Changing Faces, Total, Leslie Segar and Maia Campbell.