Landlocked National Capitals Around the World

The question asks for "US capital" but the context implies national capitals. There is no landlocked U.S. state capital (all 50 states have access to navigable water or are coastal). Below is a list of landlocked national capitals (no coastline on ocean or sea):

• Europe: Andorra la Vella (Andorra), Vienna (Austria), Minsk (Belarus), Sarajevo (Bosnia), Sofia (Bulgaria), Prague (Czechia), Vaduz (Liechtenstein), Luxembourg (Luxembourg), Chisinau (Moldova), Monaco (Monaco*), Podgorica (Montenegro), Skopje (North Macedonia), Oslo (Norway*), Belgrade (Serbia), Bratislava (Slovakia), Ljubljana (Slovenia), San Marino (San Marino), Vatican City (Vatican), Budapest (Hungary), Bern (Switzerland), Zagreb (Croatia*)
• Asia: Kabul (Afghanistan), Yerevan (Armenia), Baku (Azerbaijan*), Thimphu (Bhutan), Beijing (China*), Tbilisi (Georgia*), Astana (Kazakhstan), Bishkek (Kyrgyzstan), Vientiane (Laos), Ulaanbaatar (Mongolia), Kathmandu (Nepal), Pyongyang (North Korea), Dushanbe (Tajikistan), Tashkent (Uzbekistan), Ashgabat (Turkmenistan)
• Africa: Gaborone (Botswana), Ouagadougou (Burkina Faso), Bujumbura (Burundi*), Bangui (CAR), N'Djamena (Chad), Addis Ababa (Ethiopia), Lilongwe (Malawi), Bamako (Mali), Niamey (Niger), Kigali (Rwanda), Juba (South Sudan), Kampala (Uganda), Lusaka (Zambia), Harare (Zimbabwe), Maseru (Lesotho), Mbabane (Eswatini)
• South America: La Paz/Sucre (Bolivia), Asunción (Paraguay)
• Central Asia: (see Asia above)

*Capitals on large inland bodies (Caspian Sea, Lake Titicaca, Lake Victoria) are sometimes considered "lake ports" but remain landlocked from oceans.