Guðlaugsson or Gudlaugsson is a surname. Notable people with the surname include:
Birgir Guðlaugsson (1941–2007), Icelandic cross-country skier Janus Guðlaugsson (born 1955), Icelandic former footballer Páll Guðlaugsson (born 1958), Icelandic football coach and former footballer Sturla Gudlaugsson (1913–1971), Danish-born Dutch art historian