Ingvaldsen is a surname. Notable people with the surname include:
Bernt Ingvaldsen (1902–1985), Norwegian politician Elisabeth Ingvaldsen, Norwegian orienteering competitor Jan-Olav Ingvaldsen (1954–2021), Norwegian politician Ole Ingvaldsen (born 1948), Norwegian curler and curling coach Ole Marius Ingvaldsen (born 1985), Norwegian ski jumper