| Country | Illicit drugs |
| Tanzania | targeted by traffickers moving hashish, Afghan heroin, and South American cocaine transported down the East African coastline, through airports, or overland through Central Africa; Zanzibar likely used by traffickers for drug smuggling; traffickers in the past have recruited Tanzanian couriers to move drugs through Iran into East Asia. |
| Thailand | a minor producer of opium, heroin, and marijuana; transit point for illicit heroin en route to the international drug market from Burma and Laos; eradication efforts have reduced the area of cannabis cultivation and shifted some production to neighboring countries; opium poppy cultivation has been reduced by eradication efforts; also a drug money-laundering center; minor role in methamphetamine production for regional consumption; major consumer of methamphetamine since the 1990s despite a series of government crackdowns |
| Timor-Leste | NA |
| Togo | transit hub for Nigerian heroin and cocaine traffickers; money laundering not a significant problem |
| Tokelau | void |
| Tonga | void |
| Trinidad and Tobago | transshipment point for South American drugs destined for the US and Europe; producer of cannabis |
| Tunisia | void |
| Turkey | key transit route for Southwest Asian heroin to Western Europe and, to a lesser extent, the US - via air, land, and sea routes; major Turkish and other international trafficking organizations operate out of Istanbul; laboratories to convert imported morphine base into heroin exist in remote regions of Turkey and near Istanbul; government maintains strict controls over areas of legal opium poppy cultivation and over output of poppy straw concentrate; lax enforcement of money-laundering controls |
| Turkmenistan | transit country for Afghan narcotics bound for Russian and Western European markets; transit point for heroin precursor chemicals bound for Afghanistan |
| Turks and Caicos Islands | transshipment point for South American narcotics destined for the US and Europe |
| Tuvalu | void |
| Uganda | void |