Beath is a surname. Notable people with the surname include:
Paul Beath (born 1968), Australian Rugby League player Barry Beath (born 1944), Australian rugby league player Betty Beath (born 1932), Australian composer, pianist and music educator Chris Beath (born 1984), Australian soccer referee Cynthia Beath (born 1944), American computer scientist Danny Beath (1960–2013), British photographer and botanist Kate Beath (1882–1979), New Zealand architect Robert Burns Beath (1839–1914), American military officer