Magg is a surname of German origin. Notable people with the surname include:
Alphons Magg (1891–1967), Swiss sculptor Alois Magg (1914–2001), German air force captain Fritz Magg (1914–1997), Austrian-American cellist Julius Magg (1884–1931), Austrian engineer and professor
See also Movie Magg, 1955 song by Carl Perkins Chief Steward Magg, fictional character in the high fantasy novel series The Chronicles of Prydain Maggs