Bär (or Baer, from German: bear) is the surname of:
- Abraham Dob Bär Lebensohn (ca. 1789/1794-1878), Russian poet and grammarian
- Dietmar Bär, German actor
- Gert Bär (* 1946), German mathematics
- Heinrich Bär (1913-1957), German Luftwaffe fighter ace with 221 victories
- Heinrich Bär (* 1905), German nazi-politician (NSDAP)
- Olaf Bär (* 1957), German operatic baritone
- Philippe Bär, Dutch former bischop
