The National Ioakeimeion Girls' High School of Constantinople (Greek: Εθνικόν Ιωακείμειον Παρθεναγωγείον Κωνσταντινουπόλεως; Turkish: Fener Yoakimyon Rum Kız Lisesi, lit. 'Phanar Ioakimion Greek High School for Girls'), commonly known as the Ioakeimeion Girls' High School (Ιωακείμειον Παρθεναγωγείον) is a defunct Greek Orthodox secondary education institution for girls located in Fener quarter of Istanbul, Turkey.