| Country | Terrain |
| French Southern and Antarctic Lands | Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): a volcanic island with steep coastal cliffs; the center floor of the volcano is a large plateau Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul): triangular in shape, the island is the top of a volcano, rocky with steep cliffs on the eastern side; has active thermal springs Iles Crozet: a large archipelago formed from the Crozet Plateau is divided into two groups of islands Iles Kerguelen: the interior of the large island of Ile Kerguelen is composed of rugged terrain of high mountains, hills, valleys, and plains with a number of peninsulas stretching off its coasts Bassas da India (Iles Eparses): atoll, awash at high tide; shallow (15 m) lagoon Europa Island, Glorioso Islands, Juan de Nova Island: low, flat, and sandy Tromelin Island (Iles Eparses): low, flat, sandy; likely volcanic seamount |
| Gabon | narrow coastal plain; hilly interior; savanna in east and south |
| Gambia, The | flood plain of the Gambia River flanked by some low hills |
| Gaza Strip | flat to rolling, sand- and dune-covered coastal plain |
| Georgia | largely mountainous with Great Caucasus Mountains in the north and Lesser Caucasus Mountains in the south; Kolkhet'is Dablobi (Kolkhida Lowland) opens to the Black Sea in the west; Mtkvari River Basin in the east; good soils in river valley flood plains, foothills of Kolkhida Lowland |
| Germany | lowlands in north, uplands in center, Bavarian Alps in south |
| Ghana | mostly low plains with dissected plateau in south-central area |
| Gibraltar | a narrow coastal lowland borders the Rock of Gibraltar |
| Greece | mostly mountains with ranges extending into the sea as peninsulas or chains of islands |
| Greenland | flat to gradually sloping icecap covers all but a narrow, mountainous, barren, rocky coast |
| Grenada | volcanic in origin with central mountains |
| Guam | volcanic origin, surrounded by coral reefs; relatively flat coralline limestone plateau (source of most fresh water), with steep coastal cliffs and narrow coastal plains in north, low hills in center, mountains in south |
| Guatemala | mostly mountains with narrow coastal plains and rolling limestone plateau |
| Guernsey | mostly level with low hills in southwest |
| Guinea | generally flat coastal plain, hilly to mountainous interior |
| Guinea-Bissau | mostly low coastal plain rising to savanna in east |
| Guyana | mostly rolling highlands; low coastal plain; savanna in south |
| Haiti | mostly rough and mountainous |
| Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| Holy See (Vatican City) | urban; low hill |