Kayacan is both a Turkish masculine given name and surname, composed of the elements "Kaya" and "Can", meaning "strong as a rock". Notable people with the name include:
Surname Buse Kayacan (born 1992), Turkish volleyball player Fuat Hüsnü Kayacan (1879–1963), Turkish football player, manager, and referee Hamit Hüsnü Kayacan (1868–1952), Turkish intellectual and sports executive, brother of Fuat Hüsnü Kemal Kayacan (1915–1992), Turkish admiral Müfit Kayacan (born 1959), Turkish actor and theatre director
Given name Kayacan Erdoğan (born 1988), Turkish football player