Al-Jabbar Grand Mosque is a mosque located in Bandung, West Java, Indonesia. Because it is surrounded by a reservoir, the mosque is sometimes referred to as the Al-Jabbar Floating Mosque.

This floating mosque is located in the Gedebage area, Bandung City. This mosque stands on a land area of ​​​​25.99 hectares and is above Lake Gedebage. The mosque was built with the concept of floating on the Embung Gedebage which has an area of ​​7.2 hectares. The dam can hold up to 270,000 cubic meters (m3) of water, which is used for flood control, water resources, and conservation.

Inspired by the algebraic formula, this mosque has symmetrical and geometric ornaments on each side. The mosque also contains four 99-meter-tall minarets, one in each of its four corners. 6,136 sheets of glass are designed to mimic fish scales that make up the façade and dome. There are 27 entrances to the mosque, representing the 27 cities or regencies of West Java. On each of these entrances there is a batik motif which is native to each of the cities or regencies. Turkish-woven carpets are used for the floors of the mosque. Another uniqueness of this mosque is the cone-shaped stacked roof with coloured glass.

The 99 x 99 meter square structure symbolizes the 99 names of Allah, with decorative elements handmade by local craftsmen. The interior features a column-free prayer hall, enhancing its monumental scale and spiritual atmosphere. The ground floor houses the Rasulullah Gallery, an educational multimedia gallery detailing the history of the Prophet Muhammad and the spread of Islam. In addition, the mosque offers a variety of facilities, turning it into a centre for worship, education and recreation, attracting thousands of visitors every day and becoming an important cultural and religious landmark in West Java.