Martinussen is a surname. Notable people with the surname include:
John Degnbol-Martinussen (1947–2002), Professor of international development at Roskilde University, Denmark Karl Martinussen (1890–1965), Norwegian theologian and priest Kent Martinussen (born 1960), Danish architect and CEO of the Danish Architecture Centre Marie Sneve Martinussen (born 1985), Norwegian politician Thomas Martinussen (born 1995), Norwegian football midfielder Tillie Martinussen (born 1980), Greenlandic politician of the Cooperation Party Willy Martinussen (born 1938), Norwegian sociologist Bersvend Martinussen Røkkum (1806–1867), Norwegian politician
See also Marteinsson Martensen Martinsen Martinson Martinsson Mortensen Mårtensson