Al-Bantani Grand Mosque is a congregational mosque in the city of Serang, Banten, Indonesia. With the capacity of 10,000 pilgrims, it is the second largest mosque in Banten province after the Al-Azhom Grand Mosque.

The architectural design employs element of the traditional Javanese/Bantenese Islamic architectural styles, as well as the Ottoman architectural style.[1] Ottoman influence is seen in the use of four minarets that surround the building in the four corners, which resembles the arrangement of the Sultan Ahmed Mosque in Istanbul.

The “Nusantara” style or the vernacular Indonesian style can be seen from the use of three-layered roofs topped with a dome. This construction resembles the design of the Great Mosque of Central Java in Semarang, which is also known for an eclectic mixture of the Indonesian, Middle Eastern, and European architectural styles.

The interior is noted for the absence of any columns, which creates an additional space for congregational prayer and the roomy impression. The interior is decorated with the Islamic calligraphy adorned with Javanese motifs.