| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Amphoe U Thai | city | Phra Nakhon Si Ayutthaya | Thailand | 14.36 | 100.67 | 22 | 36602 |
| Amphoe U-Thong | city | Suphan Buri | Thailand | 14.38 | 99.89 | 13 | 25310 |
| Amphoe Ubolratana | city | Khon Kaen | Thailand | 16.75 | 102.63 | 830 | 13373 |
| Amphoe Udhumbhornbhisai | city | Sisaket | Thailand | 15.11 | 104.14 | 830 | 31633 |
| Amphoe Udon | city | Phatthalung | Thailand | 7.73 | 100.01 | 203 | 19221 |
| Amphoe Umphang | city | Tak | Thailand | 16.02 | 98.86 | 1669 | 596 |
| Amphoe Utara Ubon | city | Ubon Ratchathani | Thailand | 15.51 | 104.73 | 406 | 13559 |
| Amphoe Uthai Noi | city | Phra Nakhon Si Ayutthaya | Thailand | 14.23 | 100.72 | 42 | 35003 |
| Amphoe Uthai Yai | city | Phra Nakhon Si Ayutthaya | Thailand | 14.36 | 100.67 | 22 | 36602 |
| Amphoe Uthumphon Phisai | city | Sisaket | Thailand | 15.11 | 104.14 | 830 | 31633 |