ISO 3166-1 Officially assigned code elements Officially assigned code elements

| English_short_name_upper_lower_case | Alpha_2_code | Alpha_3_code | Numeric_code | ISO_3166_2_codes |
|---|---|---|---|---|
| Togo | TG | TGO | 768 | ISO 3166-2:TG |
| Tokelau | TK | TKL | 772 | ISO 3166-2:TK |
| Tonga | TO | TON | 776 | ISO 3166-2:TO |
| Trinidad and Tobago | TT | TTO | 780 | ISO 3166-2:TT |
| Tunisia | TN | TUN | 788 | ISO 3166-2:TN |
| Turkey | TR | TUR | 792 | ISO 3166-2:TR |
| Turkmenistan | TM | TKM | 795 | ISO 3166-2:TM |
| Turks and Caicos Islands | TC | TCA | 796 | ISO 3166-2:TC |
| Tuvalu | TV | TUV | 798 | ISO 3166-2:TV |
| Uganda | UG | UGA | 800 | ISO 3166-2:UG |
| Ukraine | UA | UKR | 804 | ISO 3166-2:UA |
| United Arab Emirates | AE | ARE | 784 | ISO 3166-2:AE |
| United Kingdom | GB | GBR | 826 | ISO 3166-2:GB |
| United States | US | USA | 840 | ISO 3166-2:US |
| United States Minor Outlying Islands | UM | UMI | 581 | ISO 3166-2:UM |