| Country | Refugees and internally displaced persons |
| Tanzania | refugees (country of origin): 352,640 (Burundi); 127,973 (Democratic Republic of the Congo) (2007) |
| Thailand | refugees (country of origin): 132,241 (Burma) (2007) |
| Timor-Leste | IDPs: 100,000 (2007) |
| Togo | refugees (country of origin): 5,000 (Ghana) IDPs: 1,500 (2007) |
| Tokelau | void |
| Tonga | void |
| Trinidad and Tobago | void |
| Tunisia | void |
| Turkey | IDPs: 1-1.2 million (fighting 1984-99 between Kurdish PKK and Turkish military; most IDPs in southeastern provinces) (2007) |
| Turkmenistan | refugees (country of origin): 11,173 (Tajikistan); less than 1,000 (Afghanistan) (2007) |
| Turks and Caicos Islands | void |
| Tuvalu | void |
| Uganda | refugees (country of origin): 215,700 (Sudan); 28,880 (Democratic Republic of Congo); 24,900 (Rwanda) IDPs: 1.27 million (350,000 IDPs returned in 2006 following ongoing peace talks between the Lord's Resistance Army (LRA) and the Government of Uganda) (2007) |
| Ukraine | void |
| United Arab Emirates | void |
| United Kingdom | void |
| United States | refugees (country of origin): the US admitted 62,643 refugees during FY04/05 including; 10,586 (Somalia); 8,549 (Laos); 6,666 (Russia); 6,479 (Cuba); 3,100 (Haiti); 2,136 (Iran) (2006) |
| United States Pacific Island Wildlife Refuges | void |
| Uruguay | void |
| Uzbekistan | refugees (country of origin): 39,202 (Tajikistan); 1,060 (Afghanistan) IDPs: 3,400 (forced population transfers by government from villages near Tajikistan border) (2007) |
| Vanuatu | void |
| Venezuela | void |
| Vietnam | void |
| Virgin Islands | void |
| Wake Island | void |
| Wallis and Futuna | void |
| West Bank | refugees (country of origin): 722,000 (Palestinian Refugees (UNRWA)) (2007) |
| Western Sahara | void |
| World | the United Nations High Commissioner for Refugees (UNHCR) estimated that in December 2006 there was a global population of 8.8 million registered refugees and as many as 24.5 million IDPs in more than 50 countries; the actual global population of refugees is probably closer to 10 million given the estimated 1.5 million Iraqi refugees displaced throughout the Middle East (2007) |
| Yemen | refugees (country of origin): 91,587 (Somalia) (2007) |
| Zambia | refugees (country of origin): 42,565 (Angola); 60,874 (Democratic Republic of the Congo); 4,100 (Rwanda) (2007) |
| Zimbabwe | refugees (country of origin): 2,500 (Democratic Republic of Congo) IDPs: 569,685 (MUGABE-led political violence, human rights violations, land reform, and economic collapse) (2007) |