The Al-Mansur Mosque is one of the oldest mosques in Jakarta, Indonesia. The mosque is located at Jembatan Lima, Tambora, Jakarta. The mosque is one of the listed cultural heritage of Jakarta. The mosque is named after Kh. Mohammad Mansur who is familiarly called Guru Mansur- a Betawi figure known for his fight against Dutch colonial rules.

The architecture of the Al-Mansur Mosque is an acculturation of Javanese, Chinese, Betawi and Arabic cultures. The mosque has a joglo [pyramid] roof, two levels and supported by four large pillars with a diameter of 1.5 meters. The windows are only rectangular holes with wooden trellises. The door model has two leaves with a carved bulian profile. Now, the walls, windows and doors on all sides are moved forward 10 meters.

The main hall of the mosque which is also the oldest building has an area size of 12 by 14.40 metres (39.4 ft × 47.2 ft). The striking element is the four solid pillars that look solid in the middle. The bottom of the columns is octagonal and above it there is a buffer, bell pellet and flat. The main stem (in the centre) is round and decorated with seams as well. The top section is rectangular and limited by seam. At half height between the four pillars there are wooden beams, among others, to support the two stairs leading to the attic. On top of the 55 centimetres (22 in) wide beams on the right and left side fitted 80 centimetres (31 in) high fence. This fence pattern is rhomboid. This construction and the shape of a western-style sokoguru. The roof of this mosque overlap in the form of limasan. The Tower (minaret), located in a new room in front of the old mosque, cylindrical shape as high as 12 metres (39 ft). In the fourth and fifth part of the tower there is a terrace with iron fences. The top of the minaret is a semi-circular dome.