| Saidina Uthman Bin Affan Mosque | |
| Native Name: | Masjid Saidina Uthman Bin Affan |
| Coordinates: | 3.0911°N 101.7181°W |
| Religious Affiliation: | Islam |
| Location: | Bandar Tun Razak, Kuala Lumpur, Malaysia |
| Tradition: | Sunni (Shafi'i) |
| Architecture Type: | Mosque |
| Architecture Style: | Modernist |
| Year Completed: | 1988 |
| Minaret Quantity: | 1 |
Saidina Uthman Bin Affan Mosque is a mosque in Bandar Tun Razak near Cheras, Kuala Lumpur, Malaysia. This mosque was opened on 1988 by the eighth Yang di-Pertuan Agong, Sultan Iskandar of Johor. It was named after Muhammad's third Caliph (successor), Uthman Bin Affan.