D'Aguilar Peninsula () is located in southeastern Hong Kong Island, in the Southern District of Hong Kong. It is named after Major-General Sir George Charles d'Aguilar.
Cape D'Aguilar is located in the southeastern part of D'Aguilar Peninsula. "Hok Tsui" () actually refers to a different cape to the southwest of the peninsula.
A site located on the north-western slope of D'Aguilar Peak and south of Windy Gap, covering an area of , was designated as a Site of Special Scientific Interest in 1975.