A landlocked country is a sovereign state entirely surrounded by land with no coastline on any ocean or sea. There are 44 universally recognized landlocked countries (plus 4 partially recognized). They face unique economic and geopolitical challenges due to dependence on transit states for maritime trade.
Burkina Faso, Burundi, Central African Republic, Chad, Ethiopia, Lesotho, Malawi, Mali, Niger, Rwanda, South Sudan, Uganda, Zambia, Zimbabwe — plus Botswana, Eswatini (sometimes classified as Southern Africa). Ethiopia lost its coast (Eritrea) in 1993.
Afghanistan, Bhutan, Kazakhstan, Kyrgyzstan, Laos, Mongolia, Nepal, Tajikistan, Turkmenistan, Uzbekistan — plus Armenia, Azerbaijan (Caspian Sea is landlocked; no ocean access). Kazakhstan is the world's largest landlocked country (2.7M km²).
Andorra, Austria, Belarus, Czech Republic, Hungary, Kosovo, Liechtenstein, Luxembourg, North Macedonia, Moldova, San Marino, Serbia, Slovakia, Switzerland — plus Vatican City (city-state). Europe has the most landlocked countries of any continent.
Bolivia, Paraguay. Bolivia lost its coast to Chile in the War of the Pacific (1879–1884)—a defining national trauma.
No landlocked sovereign states. All continental nations have coastlines (Canada, USA, Mexico, Guatemala, Belize, Honduras, El Salvador, Nicaragua, Costa Rica, Panama).
Only two countries are landlocked by landlocked countries: Liechtenstein (surrounded by Switzerland, Austria) and Uzbekistan (surrounded by Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Turkmenistan).