Tun Abdul Aziz Mosque known as Masjid Bulat (Round Mosque) is located in Petaling Jaya, Selangor, Malaysia. The mosque is located in Section 14 at the junctions between Jalan Semangat and Jalan Dato’ Abdul Aziz. It was named after Tun Abdul Aziz Abdul Majid, a former Menteri Besar (Chief Minister) of Selangor

The modernist eclectic mosque expression is prevalent throughout its elevation, with a series of curve and pointed crenulations wrapped around its parapet wall of the building. A central pointed dome sits on top of the round structural beam, above the main prayer hall. It is paired with a slender round minaret, finished with a similar dome design, but smaller and located on the north side of the mosque area.

Apart from the main prayer hall and the female prayer gallery, various facilities are available, including a hall, office, classrooms, kiosks and small shops, ablution and toilet facilities. The radial layout has been clearly utilised wisely in an adequate spatial planning, with a spacious large column-free open main prayer hall that provides for a conducive worshipping area Fringed with repetitive glass windows, the generous daylight gives a grandeur expression to the space.

With an elaborate internal dome ornamentation and a grand chandelier, it is a discernible match with the mihrab-minbar feature of the mosque. A customised high mihrab niche is equipped with a timber clad minbar platform, with the imam’s room and a store located behind it.