| Country | Terrain |
| Bosnia and Herzegovina | mountains and valleys |
| Botswana | predominantly flat to gently rolling tableland; Kalahari Desert in southwest |
| Bouvet Island | volcanic; coast is mostly inaccessible |
| 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 |
| Comoros | volcanic islands, interiors vary from steep mountains to low hills |
| Congo, Democratic Republic of the | vast central basin is a low-lying plateau; mountains in east |
| Congo, Republic of the | coastal plain, southern basin, central plateau, northern basin |
| Cook Islands | low coral atolls in north; volcanic, hilly islands in south |
| Coral Sea Islands | sand and coral reefs and islands (or cays) |
| Costa Rica | coastal plains separated by rugged mountains including over 100 volcanic cones, of which several are major volcanoes |
| Cote d'Ivoire | mostly flat to undulating plains; mountains in northwest |
| Croatia | geographically diverse; flat plains along Hungarian border, low mountains and highlands near Adriatic coastline and islands |
| Cuba | mostly flat to rolling plains, with rugged hills and mountains in the southeast |
| Cyprus | central plain with mountains to north and south; scattered but significant plains along southern coast |
| Czech Republic | Bohemia in the west consists of rolling plains, hills, and plateaus surrounded by low mountains; Moravia in the east consists of very hilly country |
| Denmark | low and flat to gently rolling plains |
| Dhekelia | void |
| Djibouti | coastal plain and plateau separated by central mountains |
| Dominica | rugged mountains of volcanic origin |