Mettam is a surname. Notable people with the surname include:
Albert Edward Mettam (1867–1917), Irish veterinarian, university principal, and professor George Mettam (1891–1967), Australian rower Leon Mettam (born 1986), English footballer Libby Mettam (born 1977), Australian politician Ned Mettam (1868–1943), English footballer
See also
John Mettam Richardson (1872–1920), English footballer Mettam Memorial Baptist Church, historic church in Maryland, United States