Nan Phayao Phetchabun Phichit Phitsanulok Phrae Sukhothai Tak Uthai Thani Uttaradit Wat Phra Sing , Chiang Mai Province [ edit ] Northeast (Isan) Main article: Isan Amnat Charoen Buri Ram Chaiyaphum Kalasin Khon Kaen Loei Maha Sarakham Mukdahan Nakhon Phanom Nakhon Ratchasima Nong Bua Lamphu Nong Khai Roi Et Sakon Nakhon