Gang Bengkok Old Mosque, Historic mosque in Kesawan district, Medan, Indonesia.

Gang Bengkok Old Mosque sits on Jalan Mesjid and features a main prayer hall with traditional Malay ceiling decorations and Persian-influenced entrance gates. The structure accommodates approximately 2000 worshippers and remains actively used for daily activities.

The mosque is thought to date from 1874, when it rose on waqf land donated by Haji Muhammad Ali, known as Datuk Kesawan. Tjong A Fie, a merchant and Kapitan from Guangdong who had settled in Medan, financed the whole construction. Sources give 1885 for the first building and 1889 for the completed renovation. Tjong A Fie then handed the mosque to the Deli Sultanate under Sultan Ma'mun Al Rashid.

The name comes from the narrow alley, gang bengkok, where the mosque was first built, with a bend right in front of it. No official name was ever given, so people around Kesawan called it Masjid Lama Gang Bengkok. Inside, the Malay ceiling decoration known as lebah bergantung (hanging bees) is carved from wood and painted yellow, the colour associated with Malay tradition.

Visitors should know this is an active place of worship with regular daily prayers and religious activities. It helps to check prayer times ahead of your visit and wear modest clothing when entering.

The land for this mosque was donated by Haji Muhammad Ali, known as Datuk Kesawan, while the Chinese merchant Tjong A Fie covered the construction costs. This unusual partnership between a local pilgrim and a foreign businessman shaped the site's story.