| Rank | Country | Elevation extremes |
242 | Afghanistan | lowest point: Amu Darya 258 m highest point: Nowshak 7,485 m |
| Akrotiri | void |
42 | Albania | lowest point: Adriatic Sea 0 m highest point: Maja e Korabit (Golem Korab) 2,764 m |
24 | Algeria | lowest point: Chott Melrhir -40 m highest point: Tahat 3,003 m |
43 | American Samoa | lowest point: Pacific Ocean 0 m highest point: Lata Mountain 964 m |
253 | Andorra | lowest point: Riu Runer 840 m highest point: Coma Pedrosa 2,946 m |
44 | Angola | lowest point: Atlantic Ocean 0 m highest point: Morro de Moco 2,620 m |
45 | Anguilla | lowest point: Caribbean Sea 0 m highest point: Crocus Hill 65 m |
6 | Antarctica |  lowest point: Bentley Subglacial Trench -2,540 m highest point: Vinson Massif 4,897 m note: the lowest known land point in Antarctica is hidden in the Bentley Subglacial Trench; at its surface is the deepest ice yet discovered and the world's lowest elevation not under seawater |
46 | Antigua and Barbuda | lowest point: Caribbean Sea 0 m highest point: Boggy Peak 402 m |
5 | Arctic Ocean | lowest point: Fram Basin -4,665 m highest point: sea level 0 m |
16 | Argentina | lowest point: Laguna del Carbon -105 m (located between Puerto San Julian and Comandante Luis Piedra Buena in the province of Santa Cruz) highest point: Cerro Aconcagua 6,960 m (located in the northwestern corner of the province of Mendoza) |
247 | Armenia | lowest point: Debed River 400 m highest point: Aragats Lerrnagagat' 4,090 m |
47 | Aruba | lowest point: Caribbean Sea 0 m highest point: Mount Jamanota 188 m |
48 | Ashmore and Cartier Islands | lowest point: Indian Ocean 0 m highest point: unnamed location 3 m |
2 | Atlantic Ocean | lowest point: Milwaukee Deep in the Puerto Rico Trench -8,605 m highest point: sea level 0 m |
29 | Australia | lowest point: Lake Eyre -15 m highest point: Mount Kosciuszko 2,229 m |