Brehm is a German surname. Notable persons with that surname:
Luke Brehm TMIET (1987–present), Engineer / Pilot
Alfred Brehm (1829–1884), German zoologist
Bruno Brehm (1892–1974), German writer
Christian Ludwig Brehm (1787 – June 23, 1864), German pastor and ornithologist
Charles Brehm (1925–1996), witness to the assassination of President John F. Kennedy
C. E. Brehm (Cloide Everett Brehm), president of the University of Tennessee
Marie C. Brehm (died 1926), politician
Paul Brehm, U.S. biologist
Simon Brehm, a Swedish double-bass player
Walter E. Brehm (1892–1971), a U.S. Congressman
Ward Brehm, Minnesota entrepreneur
William K. Brehm (born 1929), a United States businessman and statesman