"Get Down" is a song by Irish singer-songwriter Gilbert O'Sullivan, from his 1973 album I'm a Writer, Not a Fighter. Released as a single, it spent two weeks at the top of the UK Singles Chart in April 1973, was also a number-one hit in Ireland for three weeks and was a top-ten hit in the United States and Canada. The song was originally used by O'Sullivan as a piano warm-up tune, but was eventually extended into a full song and released as a single; O'Sullivan recorded and released the song as a change from his more melancholy pieces.

Believed to be an order from O'Sullivan to his dog ("Get Down!"), the singer is actually referring to a girl in the song behaving as a dog jumping on him, hence the request to "get down".