Al-Jahili Fort, Military fortress in Al Ain, United Arab Emirates

Al-Jahili Fort is a square fort 118 metres long and 8 metres high, with three round watchtowers 5 metres in diameter and 14 metres tall, plus a rectangular tower on the northwestern corner. A historic mosque stands outside the fort walls, not inside the compound.

Al-Jahili Fort was built in 1891 around Al-Jahili Oasis on the orders of Sheikh Zayed bin Khalifa Al Nahyan, to protect the date palm farmers of the oasis. In 1955 it became a base for the Trucial Oman Levies, renamed Trucial Oman Scouts in 1956; from the fort, first aid, basic medicine and disinfectants were sent by camel patrol to remote villages around Al Ain, and a military band was formed there in 1957. Percy Cox visited the Al Jahili area in 1905, and J. G. Lorimer recorded in 1906 that the fort was built under Zayed bin Khalifa. Al Ain's Department of Antiquities and Museums restored it in the mid-1980s, and the Abu Dhabi Authority for Culture & Heritage restored it again in 2007–2008.

The fort's name comes from Al-Jahili Oasis, the palm gardens it was built to protect in 1891. Its square plan, 118 metres on each side, is defended by three round towers 14 metres high and a rectangular tower at the northwestern corner, which the sources call the stronger defensive position. A historic mosque stands outside the fort walls, not inside them.

Exhibition spaces inside display collections about British explorer Wilfred Thesiger and guide visitors through various historical displays and information panels. Guided tours are available to help visitors understand the fort's layout and historical significance more thoroughly.

A smaller replica of parts of the fort, together with the Sheikh Zayed bin Sultan Al Nahyan Bridge, was inaugurated in April 2013 beside the Swat River in Pakistan's Swat Valley. The fort itself was restored twice, by Al Ain's Department of Antiquity and Museums in the mid-1980s and by the Abu Dhabi Authority for Culture & Heritage in 2007–2008.