Masjid Alkaff Upper Serangoon
| Masjid Alkaff Upper Serangoon مسجد الكاف أعالي سيرانغون | |
|---|---|
| Religion | |
| Affiliation | Sunni Islam |
| Location | |
| Location | 66 Pheng Geck Avenue, Singapore 348261 |
| Country | Singapore |
Location in Singapore | |
| Coordinates | 1°19′59″N 103°52′14″E / 1.3330372°N 103.8704843°E |
| Architecture | |
| Type | Mosque |
| Style | Indo-Saracenic architecture Moorish architecture Ottoman architecture |
| Founder | Alkaff family |
| Established | 1920s |
| Completed | 1932 2014 (renovation) |
| Specifications | |
| Minaret | 1 |
| Minaret height | 24 metres |
| Designated as NHL | |
| Designated | 19 December 2014 |
| Reference no. | 68 |
Masjid Alkaff Upper Serangoon (Jawi: مسجد الكاف أعالي سيرانغون) is a historic mosque located in Potong Pasir within the Central Region, Singapore. It was built in 1932 by Syed Abdul Rahman Alkaff, the head of the prestigious Alkaff family. The mosque was extensively renovated in 2014 and subsequently gazetted as a national monument.