S
- Sa
- Saba Yoi
- Sabost
- Sadao
- Sai Buri
- Sai Ngam
- Sa Kaeo
- Sakon Nakhon
- Sam Chuk
- Sam Ngam
- Sam Ngao
- Samrong Thap
- Samut Prakan
- Samut Sakhon
- Samut Songkhram
- Sangkha
- San Kamphaeng
- San Pa Tong
- San Sai
- Sara Buri
- Sathani Khao Chum Thong
- Sathing Phra
- Sattahip
- Satuk
- Satul
- Sawang Daen Din
- Sawankhalok
- Seka
- Selaphum
- Sena
- Si Bun Ruang
- Sikao
- Si Khiu
- Si Khoraphum
- Sing Buri
- Si Prachan
- Si Racha
- Siri Kit Dam
- Sisaket
- Si Sakhon
- Si Satchanalai
- Si That
- Songkhla
- Sukhothai
- Sungai Kolok
- Sung Men
- Sung Noen
- Supham Buri
- Surat Thani
- Surin
- Suwannaphum