Raya Syekh Burhanuddin Mosque, Islamic mosque in Ulakan, Indonesia.

Raya Syekh Burhanuddin Mosque stands on a 55-by-70-metre plot in Ulakan. Its square prayer hall measures 40 by 40 metres, fronted by a 3-by-40-metre terrace, and two minarets flank the building. The interior holds about 3,000 worshippers.

Built by Burhanuddin Ulakan in 1670, the mosque began as a 15-by-15-metre wooden structure, making it one of Indonesia's oldest mosques. It was first renovated in 1760 because the building had become unfit. The 2009 Sumatra earthquake destroyed it, and reconstruction was completed in 2011.

The mosque is named after Burhanuddin Ulakan, the religious leader who founded it in 1670 and is credited with spreading Islam in the Minangkabau region. It is a protected cultural heritage site of West Sumatra, and pilgrims come to Ulakan to visit his grave.

The religious complex can accommodate up to 3,000 worshippers with large interior and outdoor spaces. As a local evacuation center during emergencies, visitors should note the signage and access routes.

The 40-by-40-metre prayer hall and its 3-by-40-metre terrace were rebuilt after the 2009 Sumatra earthquake and finished in 2011. The same site also serves as a tsunami evacuation point, so the two minarets flanking the square building mark more than a place of worship.