Biehl is a German surname. Notable people with the surname include:
Amy Biehl (1967–1993), American anti-apartheid activist murdered by a black South African mob Dorothea Biehl (1731–1788), Danish playwright and translator Janet Biehl (born 1953), writer associated with social ecology João Biehl, Brazilian anthropologist and theologian John Biehl (1939–2023), Chilean lawyer, political scientist and politician
See also Biel (name), given name and surname Beal (surname)