"Get Down Tonight" is a song released in 1975 on the eponymous album by the disco group KC and the Sunshine Band. The song became widely successful, becoming the first of their five number-one hits on the Billboard Hot 100 chart. It also reached the top of the Hot Soul Singles chart.

The song displays some of the signature characteristics of the disco era such as a fast tempo, and repeating lyrics. The song features a distinctive introduction, in which a recorded guitar solo is rendered at double speed over a normal-speed guitar line in the background.

Richard Finch told Songfacts that "Get Down Tonight" was inspired by a Gilbert O'Sullivan song called "Get Down." He explained: "He wrote that song about his dog. That record was really hot back then. And I was like, 'Okay, this guy has a great idea.' He's talking about 'get down.' But I didn't find out until later on he was talking about his dog. And I was like, 'Well, that's really square.' How hip is that?"

In 1998 the song was sampled by the house production act Bamboo for the hit single "Bamboogie". It peaked at Number 2 in the UK Singles Chart.

The song was also featured in the medley-song "Hey Goldmember"(from the 2002 motion picture "Austin Powers in Goldmember") along with Earth, Wind & Fire's "Sing A Song"and two other KC & the Sunshine Band's songs, namely "(Shake, Shake, Shake) Shake Your Booty"and "That's the Way (I Like It)". The lyrics of all four songs have been changed completely, and the song is performed by Foxxy Cleopatra, one of the movie's main characters, portrayed by Beyoncé Knowles. The song also appeared in the movie Sid and Nancy which was based on the life of Sid Vicious and Nancy Spungen