Aldemir may be both a given name and surname. Notable people with the name include:
Given name Aldemir Bendine (born 1963), Brazilian chief executive officer (CEO) of Petrobras Aldemir da Silva Junior (born 1992), Brazilian sprinter Aldemir Martins (1922–2006), Brazilian artist
Surname Cüneyt Aldemir (born 1973), Turkish dentist and politician Furkan Aldemir (born 1991), Turkish basketball player Koray Aldemir (born 1990), German professional poker player of Turkish descent