Jami-Ul-Alfar is a mosque located on Main Street in Pettah, Colombo 01. It was constructed during the British colonial period, to afford the Pettah merchants of Islam, to offer prayer during the day.
The mosque is colloquially known as the "Red Mosque" because of its Moorish mosaic of red and white brick. This contrasted brick pattern makes the mosque visually outstanding, in contrast to the surrounding commercial buildings.

