In the entire world, Isildak (Isildak 
) is an extremely rare unknown gender forename. Much more frequently, Isildak is the last name as well as the forename.
Mr, Sevim, Sevgi, Sedef, Alkan, Aysun, Aynur, Ahmet, Celal, Ceren, Bekir, Burak, Burcu, Koray, Rahmi, Derya, Dilek, Gulay, Taner, Toros, Ercan, Evrim, Seref, Sibel, Murat, Minas, Ali, Rae, Gul, Nur, Suat, Adem, Ates, Bora, Kaan, Kent, Habib, Riza, Eren, Erol, Enis, Emel, Emre, Ekin, Irem, Omer, Umit, Ugur, Naci, and Hacer