Masjid Hajjah Fatimah (Malay for Hajjah Fatimah Mosque; Chinese: 哈贾•法蒂玛回教堂) is a mosque located along Beach Road in the Kampong Glam district within the Kallang Planning Area in Singapore. The mosque was completed in 1846. The mosque represented a mix of local Islamic and European architecture, having been designed by colonial architect John Turnbull Thomson. The mosque was named after a lady of the same name, who was a wealthy donor to the building.