The Wali Khan Mosque is a historic six-domed Mughal-era mosque located at Chawk Bazar in the city center of Chittagong, Bangladesh. It was built between 1713 and 1716 by Wali Beg Khan, who was a Mughal Faujdar (general) stationed in Chittagong. Wali Khan also founded Chawk Bazar and built his residence along with a kutchery nearby. He donated 120 dronas of land in Kadalpur, Nizampur, and Sandwip for the mosque’s upkeep and dug a large tank near his residence called ‘Kamaldaha.’

Architecturally, the mosque is rectangular and double-aisled with four engaged octagonal towers on the outer corners. It has three entrances on the east side, the central entrance larger and highlighted with a rectangular fronton facing the Chawk, which added to the grandeur of the Mughal city. Inside, the prayer chamber measures 17.68 meters in length and 10.21 meters in breadth, divided into three bays each roofed by two domes, totaling six domes. Each dome sits on an octagonal drum and is crowned with multi-tiered finials. The qibla wall includes three mihrabs; the central one has lost much of its original decoration due to restoration.

Though once a magnificent structure, the mosque has lost much of its original splendor because of extensive renovations and veranda extensions concealing the north, south, and east walls, diminishing its grand exterior view. Despite this, the mosque remains an important historical and architectural landmark reflecting Mughal influence in Chittagong