List of Former countries in Thai history in plain text you can copy and paste:
- Ayutthaya Kingdom
- Kingdom of Besut Darul Iman
- Chi Tu
- Kingdom of Chiang Mai
- Dvaravati
- Principality of Hà Tiên
- Hariphunchai
- Kedah Sultanate
- Kingdom of Kubang Pasu Darul Qiyam
- Lan Na
- Lan Xang
- Langkasuka
- Lavo Kingdom
- Ming dynasty Tai history
- Mueang
- Nakhon Si Thammarat Kingdom
- Ngoenyang
- Pan Pan
- Pattani Kingdom
- Kingdom of Reman
- Sanfotsi
- Kingdom of Setul Mambang Segara
- Shan States
- Siamese Shan States
- Singhanavati
- Srivijaya
- Sukhothai Kingdom
- Sultanate of Singora
- Tambralinga
- Thonburi Kingdom
- First Toungoo Empire