| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Jaeung Doi | city | Changwat Chiang Mai | Thailand | 18.8744444 | 99.1355556 | 1141 | 19681 |
| Jai Badal | city | Changwat Lop Buri | Thailand | 15.2077778 | 101.1347222 | 160 | 9225 |
| Jai Bādāl | city | Changwat Lop Buri | Thailand | 15.2077778 | 101.1347222 | 160 | 9225 |
| Jai-Nadh | city | Changwat Chai Nat | Thailand | 15.1833333 | 100.1333333 | 62 | 34037 |
| Jai-Nādh | city | Changwat Chai Nat | Thailand | 15.1833333 | 100.1333333 | 62 | 34037 |
| Jaibhum | city | Changwat Chaiyaphum | Thailand | 15.8 | 102.0333333 | 646 | 20633 |
| Jainat | city | Changwat Chai Nat | Thailand | 15.1833333 | 100.1333333 | 62 | 34037 |
| Jaiya | city | Changwat Surat Thani | Thailand | 9.3833333 | 99.2333333 | 22 | 5505 |
| Jaiyabhum | city | Changwat Nan | Thailand | 19.0666667 | 100.8 | 777 | 9313 |
| Jaiyabhum | city | Changwat Chaiyaphum | Thailand | 15.8 | 102.0333333 | 646 | 20633 |
| Jamuang | city | Changwat Prachuap Khiri Khan | Thailand | 11.1333333 | 99.4666667 | 82 | 7720 |
| Jana | city | Changwat Songkhla | Thailand | 6.9166667 | 100.7333333 | 32 | 18666 |
| Jang | city | Changwat Chiang Mai | Thailand | 19.1666667 | 98.8666667 | 1646 | 7284 |
| Janggeung | city | Changwat Chiang Mai | Thailand | 18.4972222 | 98.3711111 | 1568 | 2366 |
| Janggeūng | city | Changwat Chiang Mai | Thailand | 18.4972222 | 98.3711111 | 1568 | 2366 |
| Janglek | city | Changwat Prachuap Khiri Khan | Thailand | 11.0666667 | 99.4 | 157 | 6912 |
| Jaring | city | Changwat Pattani | Thailand | 6.8616667 | 101.365 | 3 | 50037 |
| Jaum Thaung | city | Changwat Chiang Mai | Thailand | 18.4269444 | 98.6780556 | 856 | 13501 |
| Jaung | city | Changwat Chiang Rai | Thailand | 20.3675 | 99.89 | 1213 | 37536 |
| Jayabhumi | city | Changwat Chaiyaphum | Thailand | 15.8 | 102.0333333 | 646 | 20633 |
| Jeeadab | city | | Thailand | 13.85 | 100.8333333 | 6 | 48981 |
| Jieng Dao | city | Changwat Chiang Mai | Thailand | 19.3666667 | 98.9666667 | 1246 | 3808 |
| Jieng Gam | city | Changwat Phayao | Thailand | 19.5238889 | 100.2991667 | 1315 | 14567 |
| Jieng Khohng | city | Changwat Chiang Rai | Thailand | 20.2833333 | 100.4 | 1131 | 9030 |
| Jieng Rai | city | Changwat Chiang Rai | Thailand | 19.9 | 99.8333333 | 1263 | 21305 |
| Jiengrak | city | Changwat Pathum Thani | Thailand | 14.05 | 100.6166667 | 22 | 60641 |
| Jiengsen | city | Changwat Chiang Rai | Thailand | 20.2666667 | 100.0833333 | 1223 | 11708 |
| Jilburi | city | Changwat Chon Buri | Thailand | 13.3666667 | 100.9833333 | 19 | 79833 |
| Jingo | city | Changwat Narathiwat | Thailand | 6.4002778 | 101.7086111 | 26 | 34317 |
| Jiēngrak | city | Changwat Pathum Thani | Thailand | 14.05 | 100.6166667 | 22 | 60641 |
| Jiēngsēn | city | Changwat Chiang Rai | Thailand | 20.2666667 | 100.0833333 | 1223 | 11708 |
| Jombhu | city | Changwat Lampang | Thailand | 18.2397222 | 99.4327778 | 734 | 21323 |
| Jonden | city | Changwat Phetchabun | Thailand | 16.1833333 | 100.85 | 364 | 11040 |
| Jondēn | city | Changwat Phetchabun | Thailand | 16.1833333 | 100.85 | 364 | 11040 |
| Jubmalai | city | Changwat Kanchanaburi | Thailand | 15.15 | 98.35 | 574 | 817 |
| Jum Seng | city | Changwat Nakhon Sawan | Thailand | 15.9 | 100.3166667 | 78 | 18982 |
| Jumbhorn | city | Changwat Chumphon | Thailand | 10.5 | 99.1666667 | 36 | 22766 |
| Jumbor | city | Changwat Chumphon | Thailand | 10.5 | 99.1666667 | 36 | 22766 |
| Jumkhihlek | city | Changwat Phitsanulok | Thailand | 16.55 | 100.6 | 177 | 13884 |
| Jāmuang | city | Changwat Prachuap Khiri Khan | Thailand | 11.1333333 | 99.4666667 | 82 | 7720 |
| Jāng | city | Changwat Chiang Mai | Thailand | 19.1666667 | 98.8666667 | 1646 | 7284 |
| Jānglēk | city | Changwat Prachuap Khiri Khan | Thailand | 11.0666667 | 99.4 | 157 | 6912 |
| Jīlburi | city | Changwat Chon Buri | Thailand | 13.3666667 | 100.9833333 | 19 | 79833 |
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