Downbeat, down beat or Down Beat may refer to:

• Downbeat and upbeat, the first and last beats, respectively, of a measure in music
• DownBeat, an American jazz magazine
• Downtempo or downbeat, a laid-back electronic music style similar to ambient music
• Down Beat, the NATO reporting name of the Leninets PN radar carried by the Russian/Soviet Tupolev Tu-22K and Tupolev Tu-22M bombers
• Downbeat Jazz Club, a jazz club in New York City