Gundelach is a surname. Notable people with the surname include:
Finn Olav Gundelach (1925–1981), Danish diplomat and European Commissioner Gustav Gundelach (1888–1962), German politician Hans-Jürgen Gundelach (born 1963), German footballer Herbert Gundelach (1899–1971), German World War II general Herlind Gundelach (born 1949), German politician
Mark Gundelach (born 1992), Danish footballer
See also Gundlach