| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Chia Radab | city | Krung Thep Maha Nakhon | Thailand | 13.85 | 100.83 | 6 | 88238 |
| Chian | city | Chai Nat | Thailand | 14.96 | 99.99 | 52 | 11943 |
| Chian Yai | city | Nakhon Si Thammarat | Thailand | 8.17 | 100.14 | 6 | 30876 |
| Chiang Dao | city | Chiang Mai | Thailand | 19.37 | 98.96 | 1246 | 4023 |
| Chiang Kham | city | Phayao | Thailand | 19.52 | 100.30 | 1669 | 13112 |
| Chiang Khan | city | Loei | Thailand | 17.89 | 101.66 | 830 | 5066 |
| Chiang Khian | city | Chiang Rai | Thailand | 19.62 | 99.99 | 1669 | 12906 |
| Chiang Khong | city | Chiang Rai | Thailand | 20.26 | 100.40 | 1125 | 7419 |
| Chiang Khwan | city | Roi Et | Thailand | 16.16 | 103.75 | 830 | 27442 |
| Chiang Klang | city | Nan | Thailand | 19.29 | 100.86 | 830 | 5125 |
| Chiang Kom | city | Loei | Thailand | 17.81 | 101.94 | 1030 | 6186 |
| Chiang Laeng | city | Phayao | Thailand | 19.60 | 100.30 | 1669 | 13041 |
| Chiang Mai | city | Chiang Mai | Thailand | 18.79 | 98.98 | 1020 | 174159 |
| Chiang Muan | city | Phayao | Thailand | 18.89 | 100.31 | 892 | 3725 |
| Chiang Ngeon | city | Tak | Thailand | 16.84 | 99.14 | 305 | 14471 |
| Chiang Phin Self Help Settlement | city | Udon Thani | Thailand | 17.34 | 102.66 | 830 | 21531 |
| Chiang Pra | city | Songkhla | Thailand | 6.94 | 100.68 | 82 | 19397 |
| Chiang Rai | city | Chiang Rai | Thailand | 19.91 | 99.83 | 1669 | 28692 |
| Chiang Saen | city | Chiang Rai | Thailand | 20.15 | 99.85 | 1669 | 27563 |
| Chiang Saen | city | Chiang Rai | Thailand | 20.28 | 100.09 | 1194 | 7921 |
| Chiang Saen Luang | city | Chiang Rai | Thailand | 20.28 | 100.09 | 1194 | 7921 |
| Chiang Saen Office | city | Chiang Rai | Thailand | 20.28 | 100.09 | 1194 | 7921 |
| Chiang Yuen | city | Maha Sarakham | Thailand | 16.41 | 103.10 | 830 | 24710 |
| Chiang Yun | city | Maha Sarakham | Thailand | 16.41 | 103.10 | 830 | 24710 |
| Chiangkhi | city | Udon Thani | Thailand | 17.99 | 102.22 | 830 | 5564 |
| Chiangmai | city | Chiang Mai | Thailand | 18.79 | 98.98 | 1020 | 174159 |
| Chieng Dao | city | Chiang Mai | Thailand | 19.37 | 98.96 | 1246 | 4023 |
| Chieng Kam | city | Phayao | Thailand | 19.52 | 100.30 | 1669 | 13112 |
| Chieng Kan | city | Loei | Thailand | 17.89 | 101.66 | 830 | 5066 |
| Chieng Kaung | city | Chiang Rai | Thailand | 20.26 | 100.40 | 1125 | 7419 |
| Chieng Kong | city | Chiang Rai | Thailand | 20.26 | 100.40 | 1125 | 7419 |
| Chieng Kum | city | Phayao | Thailand | 19.52 | 100.30 | 1669 | 13112 |
| Chieng Sean | city | Chiang Rai | Thailand | 20.15 | 99.85 | 1669 | 27563 |
| Chieng Sen | city | Chiang Rai | Thailand | 20.28 | 100.09 | 1194 | 7921 |
| Chienggam | city | Phayao | Thailand | 19.52 | 100.30 | 1669 | 13112 |
| Chienggan | city | Loei | Thailand | 17.89 | 101.66 | 830 | 5066 |
| Chiengmai | city | Chiang Mai | Thailand | 18.79 | 98.98 | 1020 | 174159 |
| Chiengmuan | city | Phayao | Thailand | 18.89 | 100.31 | 892 | 3725 |
| Chiengrai | city | Chiang Rai | Thailand | 19.91 | 99.83 | 1669 | 28692 |
| Chiengsen | city | Chiang Rai | Thailand | 20.15 | 99.85 | 1669 | 27563 |
| Chin Bayau | city | Yala | Thailand | 6.37 | 101.10 | 259 | 7897 |
| Chin Chia | city | Samut Prakan | Thailand | 13.50 | 100.73 | 3 | 83683 |
| Chin Lat | city | Chaiyaphum | Thailand | 15.80 | 102.19 | 830 | 14924 |
| Ching Kho | city | Songkhla | Thailand | 7.26 | 100.52 | 62 | 34643 |
| Chit | city | Songkhla | Thailand | 7.00 | 100.59 | 216 | 25057 |
| Chiyandburii | city | Chanthaburi | Thailand | 12.61 | 102.10 | 22 | 76963 |
| Chiêng Hai | city | Chiang Rai | Thailand | 19.91 | 99.83 | 1669 | 28692 |