| Country | Diplomatic representation in the US |
| Slovenia | chief of mission: Ambassador Samuel ZBOGAR chancery: 2410 California Street N.W., Washington, DC 20008 telephone: [1] (202) 386-6601 FAX: [1] (202) 386-6633 consulate(s) general: Cleveland, New York |
| Solomon Islands | chief of mission: Ambassador Collin David BECK chancery: 800 Second Avenue, Suite 400L, New York, NY 10017 telephone: [1] (212) 599-6192, 6193 FAX: [1] (212) 661-8925 |
| Somalia | Somalia does not have an embassy in the US (ceased operations on 8 May 1991); note - the TFG is represented in the United States through its Permanent Mission to the United Nations |
| South Africa | chief of mission: Ambassador Welile Augustine NHLAPO chancery: 3051 Massachusetts Avenue NW, Washington, DC 20008 telephone: [1] (202) 232-4400 FAX: [1] (202) 265-1607 consulate(s) general: Chicago, Los Angeles, New York |
| South Georgia and the South Sandwich Islands | none (overseas territory of the UK, also claimed by Argentina) |
| Southern Ocean | void |
| Spain | chief of mission: Ambassador Carlos WESTENDORP chancery: 2375 Pennsylvania Avenue NW, Washington, DC 20037 telephone: [1] (202) 452-0100, 728-2340 FAX: [1] (202) 833-5670 consulate(s) general: Boston, Chicago, Houston, Los Angeles, Miami, New Orleans, New York, San Francisco, San Juan (Puerto Rico) |
| Spratly Islands | void |
| Sri Lanka | chief of mission: Ambassador Bernard GOONETILLEKE chancery: 2148 Wyoming Avenue NW, Washington, DC 20008 telephone: [1] (202) 483-4025 (through 4028) FAX: [1] (202) 232-7181 consulate(s) general: Los Angeles consulate(s): New York |
| Sudan | chief of mission: Ambassador (vacant); Charge d'Affaires John UKEC Lueth chancery: 2210 Massachusetts Avenue NW, Washington, DC 20008 telephone: [1] (202) 338-8565 FAX: [1] (202) 667-2406 |
| Suriname | chief of mission: Ambassador Jacques Ruben Constantijn KROSS chancery: Suite 460, 4301 Connecticut Avenue NW, Washington, DC 20008 telephone: [1] (202) 244-7488 FAX: [1] (202) 244-5878 consulate(s) general: Miami |
| Svalbard | void |
| Swaziland | chief of mission: Ambassador Ephraim Mandla HLOPHE chancery: 1712 New Hampshire Avenue, NW, Washington, DC 20009 telephone: [1] (202) 234-5002 FAX: [1] (202) 234-8254 |
| Sweden | chief of mission: Ambassador Jonas HAFSTROM chancery: 2900 K Street NW, Washington, DC 20007 telephone: [1] (202) 467-2600 FAX: [1] (202) 467-2699 consulate(s) general: Chicago, Los Angeles, New York |
| Switzerland | chief of mission: Ambassador Urs ZISWILER chancery: 2900 Cathedral Avenue NW, Washington, DC 20008 telephone: [1] (202) 745-7900 FAX: [1] (202) 387-2564 consulate(s) general: Atlanta, Chicago, Los Angeles, New York, San Francisco |
| Syria | chief of mission: Ambassador Imad MUSTAFA chancery: 2215 Wyoming Avenue NW, Washington, DC 20008 telephone: [1] (202) 232-6313 FAX: [1] (202) 234-9548 |
| Taiwan | none; unofficial commercial and cultural relations with the people of the US are maintained through an unofficial instrumentality, the Taipei Economic and Cultural Representative Office (TECRO), which has its headquarters in Taipei and in the US in Washington, DC; there are also branch offices called Taipei Economic and Cultural Office (TECO) in 12 other US cities |
| Tajikistan | chief of mission: Ambassador Abdujabbor SHIRINOV chancery: 1005 New Hampshire Avenue NW, Washington, DC 20037 telephone: [1] (202) 223-6090 FAX: [1] (202) 223-6091 |
| Tanzania | chief of mission: Ambassador Ombeni Yohana SEFUE chancery: 2139 R Street NW, Washington, DC 20008 telephone: [1] (202) 939-6125 FAX: [1] (202) 797-7408 |
| Thailand | chief of mission: Ambassador KRIT Kanchanakunchon (KRIT Garnjana-Goonchorn) chancery: 1024 Wisconsin Avenue NW, Suite 401, Washington, DC 20007 telephone: [1] (202) 944-3600 FAX: [1] (202) 944-3611 consulate(s) general: Chicago, Los Angeles, New York |
| Timor-Leste | chief of mission: Ambassador (vacant); Charge d'Affaires Constancio PINTO chancery: 4201 Connecticut Avenue NW, Washington, DC 20008 telephone: [1] (202) 966-3202 FAX: [1] (202) 966-3205 consulate(s) general: New York |
| Togo | chief of mission: Ambassador (vacant); Charge d'Affaires Lorempo LANDJERGUE chancery: 2208 Massachusetts Avenue NW, Washington, DC 20008 telephone: [1] (202) 234-4212 FAX: [1] (202) 232-3190 |
| Tokelau | none (territory of New Zealand) |