| Country | Terrain |
| Brazil | mostly flat to rolling lowlands in north; some plains, hills, mountains, and narrow coastal belt |
| British Indian Ocean Territory | flat and low (most areas do not exceed two meters in elevation) |
| British Virgin Islands | coral islands relatively flat; volcanic islands steep, hilly |
| Brunei | flat coastal plain rises to mountains in east; hilly lowland in west |
| Bulgaria | mostly mountains with lowlands in north and southeast |
| Burkina Faso | mostly flat to dissected, undulating plains; hills in west and southeast |
| Burma | central lowlands ringed by steep, rugged highlands |
| Burundi | hilly and mountainous, dropping to a plateau in east, some plains |
| Cambodia | mostly low, flat plains; mountains in southwest and north |
| Cameroon | diverse, with coastal plain in southwest, dissected plateau in center, mountains in west, plains in north |
| Canada | mostly plains with mountains in west and lowlands in southeast |
| Cape Verde | steep, rugged, rocky, volcanic |
| Cayman Islands | low-lying limestone base surrounded by coral reefs |
| Central African Republic | vast, flat to rolling, monotonous plateau; scattered hills in northeast and southwest |
| Chad | broad, arid plains in center, desert in north, mountains in northwest, lowlands in south |
| Chile | low coastal mountains; fertile central valley; rugged Andes in east |
| China | mostly mountains, high plateaus, deserts in west; plains, deltas, and hills in east |
| Christmas Island | steep cliffs along coast rise abruptly to central plateau |
| Clipperton Island | coral atoll |
| Cocos (Keeling) Islands | flat, low-lying coral atolls |
| Colombia | flat coastal lowlands, central highlands, high Andes Mountains, eastern lowland plains |