Formerly called Wat Tuyong. Wat Mujalin-thavapi Viharn is about 10 kms. from Pattani town on Highway no. 42. His Majesty King Chulalongkorn, during his visit to the Malay Peninsula in 1890, made a stop at Muang Nongjik and visited Wat Tuyong. He donated his own money to build and Ubosot (convocation hall) and erect the letters Joh. Poh. Roh., his initials over th gable, the name being changed at the same time to Wat Mujalinthavapi Viharn.