The Pertevniyal Valide Sultan Mosque, also known as the Aksaray Valide Mosque (Turkish: Pertevniyal Valide Sultan Camii, Aksaray Valide Sultan Camii), is an Ottoman imperial mosque in Istanbul, Turkey. It is located at the intersection of Ordu Street and Atatürk Boulevard in the Aksaray neighborhood. It is located next to Pertevniyal High School (Turkish: Pertevniyal Lisesi) which was also built by the order of Sultana Pertevniyal in 1872.