Masjid Alkaff Upper Serangoon

Masjid Alkaff Upper Serangoon (Jawi: مسجد الكاف أعالي سيرانغون, Alkaff Upper Serangoon Mosque) is a mosque located in the Serangoon planning area of the North-East Region, Singapore. Gazetted as one of Singapore's national monuments, the mosque was built in 1932 and is one of two mosques in Singapore that are named for the Alkaff family, the other being Masjid Alkaff Kampung Melayu.