Kehrer is a rare German surname native to the mountain areas of Switzerland, Bavaria and Saxony. Etymologically, it appears to be a topographical name meaning "someone living by a bend in a road". In modern German it means a "cleaner" and this is assumed by some to be its origin as an occupational name. Notable people with the surname include:
- Christian Wilhelm Karl Kehrer (b.1775 d.1869), German court painter and archivist.
- Elisabeth Kehrer (b.1961), Austrian diplomat.
- Ferdinand Adolf Kehrer (b.1837 d.1914), German inventor of the modern Caesarean section.
- Gerd Kehrer (b.1939), German painter.
- Hugo Kehrer (b.1876 d.1967), German art historian.
- Jürgen Kehrer (b.1956), German writer.
- Karl Christian Kehrer (b.1755 d.1833), German portrait painter.
- Klaus Kehrer (f.1995+), German book publisher.
- Rudolf Kehrer (b.1923 d.2013), Georgian classical pianist.
- Stefan Kehrer (b.1985), German wrestler.
- Thilo Kehrer (b.1996), German soccer player.