ia [US Embassy]
Bulgaria

Solomon Islands, northern
Papua New Guinea

Solomon Islands, southern
Solomon Islands

Soloman Sea
Pacific Ocean

Songkhla [US Consulate]
Thailand

Sound, The (Oresund)
Atlantic Ocean

South Atlantic Ocean
Atlantic Ocean

South China Sea
Pacific Ocean

Southern Grenadines
Grenada

Southern Rhodesia
Zimbabwe

South Georgia
South Georgia and the South Sandwich Islands

South Island
New Zealand

South Korea
Korea, South

South Orkney Islands
Antarctica

South Pacific Ocean
Pacific Ocean

South Sandwich Islands
South Georgia and the South Sandwich Islands

South Shetland Islands
Antarctica

South Tyrol
Italy

South Vietnam
Vietnam

South-West Africa
Namibia

South Yemen (People's Democratic Republic of Yemen)
Yemen

Soviet Union
Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan,
Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan,
Ukraine, Uzbekistan

Spanish Guinea
Equatorial Guinea

Spanish Sahara
Western Sahara

Spitsbergen
Svalbard

Stanley
Falkland Islands (Islas Malvinas)

Stockholm [US Embassy]
Sweden

Strasbourg [US Consulate General]
France

Stuttgart [US Consulate General]
Germany

Suez, Gulf of
Indian Ocean

Sulu Archipelago
Philippines

Sulu Sea
Pacific Ocean

Sumatra
Indonesia

Sumba
Indonesia

Sunda Islands (Soenda Isles)
Indonesia; Malaysia

Sunda Strait
Indian Ocean

Surabaya [US Consulate]
Indonesia

Surigao Strait
Pacific Ocean

Surinam
Suriname

Suva [US Embassy]
Fiji

Swains Island
American Samoa

Swan Islands
Honduras

Sydney [US Consulate General] Australia

T
Tahiti
French Polynesia

Taipei
Taiwan

Taiwan Strait
Pacific Ocean

Tallin [US Embassy]
Estonia

Tampico [US Consular Agency]
Mexico

Tanganyika
Tanzania

Tangier
Morocco

Tarawa
Kiribati

Tartar Strait
Pacific Ocean

Tashkent [US Embassy]
Uzbekistan

Tasmania
Australia

Tasman Sea
Pacific Ocean

Taymyr Peninsula (Poluostrov Taymyra)
Russia

Tegucigalpa [US Embassy]
Honduras

Tehran [US post not maintained, representation by Swiss Embassy]
Iran

Tel Aviv [US Embassy]
Israel

Terre Adelie (Adelie Land) [claimed by France]
Antarctica

Thailand, Gulf of
Pacific Ocean

Thessaloniki [US Consulate General]
Greece

Thimphu
Bhutan

Thurston Island
Antarctica

Tibet (Xizang)
China

Tibilisi (Tbilisi) [US Embassy]
Georgia

Tierra del Fuego