Nasrullah Mosque (Turkish: Nasrullah Cami) is a 16th-century Ottoman mosque in Kastamonu, Turkey.

The mosque was commissioned by Kadı Nasrullah, a judge of the Ottoman Empire.

It was built in 1506, during the reign of Sultan Bayazid II.

The narthex (Turkish: son cemaat yeri) has seven domes over ten columns.

This article about a mosque or other Islamic place of worship in Turkey is a stub.