Islands and dry-land coastal features

Henderson Island (Pitcairn Islands)

Henderson Island is a remote, uninhabited coral atoll in the Pitcairn Islands and a UNESCO World Heritage Site since 1988, home to four endemic land birds.

Hendrik Ø

Hendrik Ø (Hendrik Island) is an uninhabited island in far northern Greenland, about 50 by 12 km, named after Hendrik Olsen, who vanished there during the Second Thule Expedition in July 1917.

Hibernia, also Iverna, Juverna, Ierne, is the classical Latin name for Ireland, first recorded by Julius Caesar, mapped by Ptolemy, and for centuries equivalent to Scotia before that name transferred to Scotland.

Hiiumaa

Hiiumaa (Dagö) is Estonia's second-largest island, 989 km², in the West Estonian archipelago; about 9,400 residents, formed by a 455-million-year-old meteorite impact, first recorded 1228 as Dageida.

Hilton Head Island, South Carolina

Hilton Head Island, South Carolina: a large Sea Islands barrier island in Beaufort County, named for Captain William Hilton in 1663, site of Mitchelville, the first self-governing freedmen's village, and transformed by Charles Fraser's Sea Pines resort development after the 1956 bridge.

Hinchinbrook Island (island, United States)

Hinchinbrook Island, Alaska: a 22-mile-long forested island at the southeast entrance to Prince William Sound, 15 mi southwest of Cordova; named by Captain Cook in 1778, site of Cape Hinchinbrook Light, Tertiary bedrock, and Chugach National Forest lands.

Hispaniola

Hispaniola (Quisqueya, La Isla Española): second-largest Greater Antilles island after Cuba, ~77,914 km², shared by the Dominican Republic and Haiti along a 388 km border; highest relief in the West Indies at Pico Duarte.

Hitra

Hitra is an island and municipality in Trøndelag, Norway, southwest of the Trondheimsfjorden; the largest island in Southern Norway (571.5–680 km²), with about 5,600 inhabitants, aquaculture and crab processing, wind farms, and subsea tunnel links to the mainland and Frøya.

Hollick-Kenyon Peninsula

Hollick-Kenyon Peninsula, also called Kenyon Peninsula (UK), an ice-covered spur of the Antarctic Peninsula projecting over 40 miles northeast between Mobiloil and Casey Inlets; discovered by Lincoln Ellsworth's 1935 flight and named for pilot Herbert Hollick-Kenyon, distinct from the Hollick-Kenyon Plateau in Ellsworth Land.

Holm of Burrafirth

Holm of Burrafirth, a small tidal island in East Burra Firth on Mainland, Shetland, cut off from the shore only at high tide; distinct from the Unst namesake holms of Burra Firth.

Holm of Grimbister

Holm of Grimbister is a small inhabited tidal islet in the Bay of Firth, Orkney, Scotland, near Finstown on Mainland Orkney and joined to it by a causeway.

Hong Kong Island (香港岛)

Hong Kong Island (香港島), 80.68 sq km with Victoria Peak at 552 m, is the island ceded to Britain in 1841–42 during the First Opium War and the original core of the Hong Kong colony.

Honshu (本州)

Honshu (本州) is Japan's largest island, 231,132 km² or 61.15% of the national area, holding about 80% of the population and Tokyo, Osaka, Nagoya, and other major cities.

Hope Island

Hope Island is the largest of a group of small islands off D'Urville Island at the northeast tip of the Antarctic Peninsula, at 63°03'S 56°50'W, named on Powell's 1822 map, also called Isla Esperanza.

Hormuz Island

Hormuz Island (Rainbow Island) is a 42 km² Iranian salt dome in the Strait of Hormuz, known for iron-oxide red soil, the Red Beach, the medieval Kingdom of Hormuz, and growing tourism.

Horseshoe Island

Horseshoe Island (Isla Herradura) is a small rocky Antarctic island in Marguerite Bay, Fallières Coast, named by Rymill's BGLE in 1936-37 for its crescent shape; it hosted FIDS Base Y (1955-1960), now Historic Site and Monument No. 63, and Farrier Col became ASPA 181 in 2024.

Horsøya

Horsøya (Horsøyna) is the name of several Norwegian islands: one in Øygarden, Vestland (seabird nature reserve, 1987), one in Hitra, Trøndelag (burial cairn, industrial expansion), one in Vega's Muddværet, and one in Frøya.

Hoseason Island

Hoseason Island, Palmer Archipelago, Antarctica; also Hoseason, Isla. Island 6-7 mi long, 3 mi wide, 20 mi west of Trinity Island, named for James Hoseason, first mate of the sealer Sprightly, charted 1824.

Hovgaard Island

Hovgaard Island (Krogmann Island) is a 3-nautical-mile-long island in the Wilhelm Archipelago, Penola Strait, Antarctica, 1.5 nmi southwest of Booth Island; discovered by Dallmann 1873-74, renamed by Gerlache's Belgian expedition after Danish naval officer Andreas Hovgaard.

Hovgaard Ø

Hovgaard Ø (Hovgaard Island), uninhabited 1,700 km² Greenland island in the Northeast Greenland National Park between Nioghalvfjerdsfjorden and Dijmphna Sund, named for polar explorer Andreas Peter Hovgaard; distinct from the Antarctic Hovgaard Island.

Howland Island

Howland Island: uninhabited U.S. Pacific island territory, 1.6 km², just north of the equator; guano-mined from 1857, Earhart's 1937 destination, bombed in 1941, now a National Wildlife Refuge.

Hoy, Orkney

Hoy is the second largest Orkney island (57 sq mi, population 416), with Orkney's highest hill Ward Hill (479 m), the 137 m Old Man of Hoy sea stack, the Dwarfie Stane Neolithic tomb, and the Hoy and West Mainland National Scenic Area.

Huahine

Huahine, formerly Matairea, is a Leeward Society Island of French Polynesia about 175 km northwest of Tahiti, made of Huahine Nui and Huahine Iti joined by a bridge, with the Maeva marae complex, the Fa'ahia early-settlement site, and about 6,300 inhabitants.

Hugo Island

Hugo Island, also called Victor Hugo Island (Russian) or Isla Víctor Hugo (Spanish, Chilean), is an ice-covered Antarctic island 1 mi long at 64°57'S, 65°45'W off the west Antarctic Peninsula, named by Charcot for Victor Hugo.

Hvar

Hvar is a 297.38 km² island in central Dalmatia, Croatia, the country's longest island at 67.5 km. Known for the Greek colony Pharos, the UNESCO Stari Grad Plain, lavender, and tourism dating to 1868.

Hydra (Ύδρα) (island)

Hydra (Ύδρα), a car-free Greek island in the Argo-Saronic Gulf about 69 km from Piraeus, ~50 km², ~2,070 residents (2021); leading naval power of the 1821 Greek War of Independence with 186 ships.

Iberian Peninsula

The Iberian Peninsula (Iberia) is southwestern Europe's peninsula, holding Spain, Portugal, Andorra, and Gibraltar. Emerged part of the Iberian Plate welded to Europe at the Pyrenees; a Pleistocene refugium with about 50% of European biodiversity and severe wildfire and drought exposure.

Ibiza

Ibiza (Eivissa), Balearic island, Spain; UNESCO mixed World Heritage site "Ibiza, Biodiversity and Culture" (1999): Dalt Vila, Sa Caleta, Puig des Molins, Posidonia meadows; record 3.39 million tourists in 2025.

Île Amsterdam

Île Amsterdam (Amsterdam Island, Nieuw Amsterdam) is a 58 km² French volcanic island in the southern Indian Ocean, part of the TAAF, home to the critically endangered Amsterdam albatross and the Martin-de-Viviès research base, hit by a major wildfire in 2025.