Pathum Wan District
Patumwan Demonstration School, Srinakharinwirot University (), commonly known as Satit Patumwan, is a 13-18 public school in Pathum Wan District, Bangkok, Thailand. It was founded in 1953 by Pin Malakul as Secondary educators’ training department, Demonstration Unit, Triam Udom Suksa School (), making it the oldest demonstration school in Thailand.