Wat Ratchathammaram is a Buddhist temple on Samui which features a gilded chedi that contains relics of the Buddha. In front of it is a statue of Tao Ramathep (fig.), the guardian god of the holy relics of the Buddha.

Its has an ubosot in pink sandstone that has an intricate bas-relief gable board, statues and other stone carvings. It is also known by the names Wat Phrathat Sila Ngu and Wat Phrathat Hin Ngu, i.e. ‘Stone Snake Relic Temple’.