Brehm is a German surname. Notable people with the surname include:
Alfred Brehm (1829–1884), German zoologist Bruno Brehm (1892–1974), German writer Christian Ludwig Brehm (1787–1864), German pastor and ornithologist Charles Brehm (1925–1996), witness to the assassination of President John F. Kennedy C. E. Brehm, president of the University of Tennessee Elsebeth Brehm (1901–1995), Danish tennis player Helene Brehm (1862–1932), German school teacher, poet, and author Jack W. Brehm (1928–2009), psychologist Joachim Brehm (1789–1860), pharmacist, botanist and plant collector Marie C. Brehm (1859–1926), American politician Paul Brehm, American biologist Sebastian Brehm (born 1971), German politician Sharon Brehm (1945–2018), American psychologist Simon Brehm, Swedish double-bass player Walter E. Brehm (1892–1971), American politician Ward Brehm, Minnesota entrepreneur William K. Brehm (1929–2025), American businessman and statesman