Jamek Mosque, also known as Masjid Jamek, is one of the oldest and most significant mosques in Kuala Lumpur, Malaysia. It is located at the confluence of the Klang and Gombak Rivers, where Kuala Lumpur was founded.

The mosque was built in 1909 during British colonial rule by British architect Arthur Benison Hubback in the Mughal architectural style, with elements of Moorish and Indo-Saracenic architecture. The mosque has a distinctive red and white brick facade, two minarets, and three domes.

The Jamek Mosque has historical significance as it was the venue for the first Friday prayers in Kuala Lumpur and played a pivotal role in the spread of Islam in the region. The mosque has undergone several renovations and expansions, including the addition of a new prayer hall and facilities to accommodate a larger congregation.

Visitors are welcome to visit the mosque, but proper attire and behavior are required. Non-Muslim visitors are not allowed to enter the prayer hall during prayer times. The mosque is open daily for visitors, except during prayer times on Fridays. It is also closed during certain Islamic holidays.