Clavier or klavier may refer to:
- keyboard instrument
- harpsichord
- clavichord
- fortepiano
- Clavia DMI, a Swedish manufacturer of electronic musical instruments
- Klavier (ballet)
- Klavier Gavin, a character from the Apollo Justice: Ace Attorney games
- "Klavier", a song by German industrial metal band Rammstein from Sehnsucht
- Clavier, Liège, a municipality in Wallonia, Belgium
- Claviers, Var, France