Kepler is both a surname and a masculine given name. Notable people with the name include:
Surname:
- Angela Kepler (born 1943), New Zealand–born American writer
- Johannes Kepler (1571–1630), German mathematician, astronomer and astrologer
- Katharina Kepler (1546–1622), German witchcraft accusation victim and mother of Johannes Kepler
- Lars Kepler, the pen name for writers Alexander Ahndoril and Alexandra Coelho Ahndoril
- Max Kepler (born 1993), German baseball player
- Shell Kepler (1958–2008), American actress
Given name: