Majerus or Majérus is a surname. Notable people with the surname include:
Christine Majerus (born 1987), Luxembourgish cyclist Jacques Majerus (1916–1972), Luxembourgish cyclist Jean Majerus (1914–1983), Luxembourgish cyclist Jean Majérus (1891–1961), Luxembourgish cyclist Marianne Majerus (born 1956), Luxembourgish photographer Michael Majerus (1954–2009), English geneticist and entomologist Michel Majerus (1967–2002), Luxembourgish artist Raymond Majerus (1924–1987), American labor leader; father of Rick Rick Majerus (1948–2012), American basketball player and coach; son of Raymond