Si Satchanalai was a historical city and polity in Thailand, also known as Mueang Chaliang.
Si Satchanalai may also refer to:
Si Satchanalai district, the modern-day amphoe covering the area, in Sukhothai province Si Satchanalai Historical Park, an archaeological site covering the present-day ruins of the city Si Satchanalai National Park a national park covering nearby forested areas