King Faisal Mosque, Sharjah, Islamic religious edifice in central Sharjah, United Arab Emirates

King Faisal Mosque is a mosque on King Faisal Road and Al Arouba Street in central Sharjah, with two minarets reaching 70 m and a footprint of 10,000–12,000 m². It holds 16,670 worshippers, 12,000 seated; men pray on the ground and first floors, women in the basement.

Construction of the King Faisal Mosque began in 1984 and it opened to the public on Friday 23 January 1987. Named after King Faisal of Saudi Arabia, it was then the largest mosque in both the Emirate of Sharjah and the country. The Sharjah Mosque in Tay and the Sheikh Zayed Grand Mosque have since surpassed it in size.

The mosque is named after King Faisal bin Abdulaziz of Saudi Arabia. On the second floor, a public library holds about 7,000 books on Islamic thought and history, Sharia and hadith, plus cultural, literary and scientific works. Near the women's prayer hall in the basement, a large space supervised by the Sharjah International Charitable Organisation collects donated clothes for the needy.

The mosque sits at the junction of King Faisal Road and Al Arouba Street in central Sharjah, within walking distance of Al Ittihad Park, the Central Bus Station and Al Jubail Souq. Men pray on the ground and first floors, women in the basement, so enter by the entrance matching your section. A large clothing-donation point supervised by Sharjah International Charitable Organisation is near the women's prayer hall.

The second floor houses the Department of Islamic Affairs and Awqaf, which manages religious activities and community services throughout Sharjah. This makes the building both a place of worship and an administrative center for religious life in the city.