Ellegaard is a Danish surname. Notable people with the surname include:
France Ellegaard (1913–1999), Danish pianist and music educator Jeanne Ellegaard (born 1987), Danish curler Kevin Stuhr-Ellegaard (born 1983), Danish footballer Mogens Ellegaard (1935–1995), Danish musicians Thorvald Ellegaard (1877–1954), Danish cyclist