Stari grad Bjelaj se nalazi u blizini Bosanskog Petrovca. Prvi put se spominje 1495. Iste godine počinje njegovo utvrđivanje zbog osmanskih napada. Gradom je upravljao dizdar. Napušten je 1838.
The Old Town Bjelaj is located near Bosanski Petrovac. It is first mentioned in 1495. The same year its fortification begins due to Ottoman attacks. The town was governed by a dizdar. It was abandoned in 1838.