| Code | Name | Region |
|---|---|---|
| FRUCX | Uchaux | 84 |
| FRTRH | Trith-saint-leger | 59 |
| FRTTO | Troarn | 14 |
| FROCH | Troche | 19 |
| FRT6C | Trocheres | 21 |
| FRTFS | Troisfontaines | 57 |
| FRTT9 | Troisgots | 50 |
| FRTI3 | Trois-palis | 16 |
| FRTT5 | Trois-puits | 51 |
| FRTY8 | Troissy | 51 |
| FRTSI | Troisvilles | 59 |
| FRTIO | Troncais | 3 |
| FR4TG | Troncens | 32 |
| FRTT7 | Tronget | 3 |
| FRTVB | Tronville-en-barrois | 55 |
| FRZJG | Trosly-breuil | 60 |
| FRT8T | Troubat | 65 |
| FRPY6 | Trouillas | 66 |
| FRTY6 | Troussey | 55 |
| FRTJE | Trouville-sur-mer | 14 |
| FRTYY | Trouy | 18 |
| FRTV2 | Trevenans | 90 |
| FRTEE | Treves | 30 |
| FRTEV | Treves | 69 |
| FRZVE | Trevien | 81 |
| FRT3Y | Trevignon | 29 |
| FRVO9 | Trevol | 3 |
| FRTVT | Trevou-treguignec | 22 |
| FRTRX | Trevoux | 1 |
| FR7FO | Trezioux | 63 |
| FRTC9 | Triac-lautrait | 16 |
| FRTCT | Tricot | 60 |
| FRTSB | Trie | 65 |
| FRTCU | Trie-chateau | 60 |
| FRYV7 | Triel-sur-seine | 78 |
| FRTU6 | Triembach-au-val | 67 |
| FRTRI | Trignac | 44 |
| FRTG9 | Trigny | 51 |
| FRTGS | Trigueres | 45 |
| FRTPO | Trilport | 77 |
| FRT27 | Triqueville | 27 |
| FRTMS | Tremons | 47 |
| FRT3R | Tremont | 49 |
| FRTOL | Tremorel | 22 |
| FRWRT | Tremuson | 22 |
| FRTN5 | Trenal | 39 |
| FRTR8 | Trentels | 47 |
| FRTR4 | Trepail | 51 |
| FRTPT | Trepot | 25 |
| FRTHP | Trept | 38 |