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

Nasrullah Mosque
Religion
Affiliation	Sunni Islam
Province	Kastamonu Province
Region	Black Sea Region
Status	Active
Location
Location	Kastamonu, Turkey
Location of Nasrullah Mosque in Turkey
Geographic coordinates	41°22′38″N 33°46′31″E / 41.37722°N 33.77528°E / 41.37722; 33.77528
Architecture
Type	mosque
Style	Ottoman architecture
Completed	1506
Minaret(s)	2

It is located in Kastamonu just west of the Kastamonu Governor's Office and Gök River.

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 building underwent restorations in 1746, 1845 and 1945.^[1]

The mosque has nine domes over six square columns each with the dimensions of 1.60 m × 1.60 m (5.2 ft × 5.2 ft). The narthex (Turkish: son cemaat yeri) has seven domes over ten columns. The pretentious public fountain (Turkish: şadırvan) of the mosque is in the courtyard to the north of the mosque. The mosque has two minarets.