| Island's name |
Island group(s) |
Country/Countries
|
| Ibicuy |
Paraná Delta |
 Argentina
|
| Ibiza |
 Balearic Islands |
 Spain
|
| Iceland |
|
 Iceland
|
| Ida |
Torres Strait Islands,  Queensland |
 Australia
|
| Idanha |
Beira Baixa islands |
 Portugal
|
| Idjwi |
Lake Kivu |
 Democratic Republic of the Congo
|
| Iejima |
Okinawa Islands part of the Ryukyu Islands |
 Japan
|
| Iheyajima |
Okinawa Islands part of the Ryukyu Islands |
Japan
|
| IJsselmonde |
 South Holland |
 Netherlands
|
| Ikaria |
|
 Greece
|
| Ikema |
Miyako Islands part of the Sakishima Islands part of the Ryukyu Islands |
Japan
|
| Île Aganton |
English Channel |
 France
|
| Île d'Ouessant |
English Channel |
France
|
| Île d'Yeu |
 Pays de la Loire |
France
|
| Île-d'Aix |
|
France
|
| Île-d'Arz |
Gulf of Morbihan |
France
|
| Île des Sœurs |
Bassin de Laprairie |
 Canada
|
| Île-Grande |
English Channel |
France
|
| Île Milliau |
English Channel |
France
|
| Île Sainte-Marguerite |
Lérins Islands |
France
|
| Îles-de-Boucherville |
St. Lawrence River |
Canada
|
| Îlot Saint-Ferréol |
Lérins Islands |
France
|
| Île Saint-Honorat |
Lérins Islands |
France
|
| Îles Sainte-Thérèse |
St. Lawrence River |
Canada
|
| Îlot de la Tradelière |
Lérins Islands |
France
|
| Îles d'Hyères |
Île du Levant, Île de Porquerolles, and Île de Port-Cros |
|
| Ilha Grande |
|
 Brazil
|
| Ilhas Cagarras |
Guanabara Bay |
Brazil
|
| Ilovik |
Adriatic Sea |
 Croatia
|
| Inaccessible |
 Tristan da Cunha |
 British overseas territory of Saint Helena, Ascension and Tristan da Cunha
|
| Inaccessible |
South Orkney Islands |
Claimed by:
United Kingdom as part of the  Falkland Islands and by
Argentina
|
| Inaccessible |
Dellbridge Islands |
Antarctica
|
| Inexpressible
|
|
Claimed by:  New Zealand,  Antarctica
|
| Indian |
Rock River,  Illinois |
 United States
|
| Indian |
Lake Huron,  Ontario |
Canada
|
| Ingarö |
|
 Sweden
|
| Ingram |
Queensland |
Australia
|
| Inhaca |
|
 Mozambique
|
| Inish Beg |
Lough Erne |
United Kingdom
|
| Inish Conra |
|
 Ireland
|
| Inish Davar |
|
Ireland
|
| Inish Divann |
|
Ireland
|
| Inish Doney |
Lough Erne |
Ireland
|
| Inish Fovar |
Lough Erne |
Ireland
|
| Inish Free |
Lough Gill |
Ireland
|
| Inish Lougher |
Lough Erne |
Ireland
|
| Inish More |
Lough Erne |
Ireland
|
| Inishbiggle |
County Mayo |
Ireland
|
| Inishbofin |
County Donegal |
Ireland
|
| Inishbofin |
County Galway |
Ireland
|
| Inishcorkish |
Upper Lough Erne |
Ireland
|
| Inisheer |
Aran Islands |
Ireland
|
| Inishkea North |
County Galway |
Ireland
|
| Inishkea South |
County Galway |
Ireland
|
| Inishleague |
Lough Erne |
Ireland
|
| Inishlirroo |
Upper Lough Erne |
Ireland
|
| Inishlught |
Upper Lough Erne |
Ireland
|
| Inishmaan |
Aran Islands |
Ireland
|
| Inishmacsaint |
Lough Erne |
Ireland
|
| Inishmakill |
Lough Erne |
Ireland
|
| Inishmore |
Aran Islands |
Ireland
|
| Inishmurray |
|
Ireland
|
| Inishark |
|
Ireland
|
| Inishturk |
Lough Erne |
Ireland
|
| Innarahu |
Baltic Sea |
 Estonia
|
| Innetalling |
Hudson Bay,  Nunavut |
Canada
|
| Innisfallen |
Lough Leane |
Ireland
|
| Insua |
Minho islands |
Portugal
|
| Iona |
Inner Hebrides |
 Scotland
|
| Iona |
Strait of Georgia |
Canada
|
| Iona |
Placentia Bay |
Canada
|
| Iona |
Hudson River |
United States
|
| Ios |
Cyclades |
Greece
|
| Iowa |
Mississippi River, Illinois |
United States
|
| Irabu |
Miyako Islands part of the Sakishima Islands part of the Ryukyu Islands |
Japan
|
| Irakleia |
Cyclades |
Greece
|
| Ireland (island) |
|
Ireland, United Kingdom
|
| Ireland's Eye |
County Dublin |
Ireland
|
| Iriomote |
Yaeyama Islands part of the Sakishima Islands part of the Ryukyu Islands |
Japan
|
| Ischia |
Gulf of Naples |
 Italy
|
| Ishigaki |
Yaeyama Islands part of the Sakishima Islands part of the Ryukyu Islands |
Japan
|
| Island 526 |
Mississippi River,  Missouri |
United States
|
| Island No. 8 |
Mississippi River,  Kentucky |
United States
|
| Island No. 21 |
Mississippi River,  Tennessee |
United States
|
| Island No. 30 |
Mississippi River, Tennessee and  Arkansas |
United States
|
| Island No. 63 |
Mississippi River,  Mississippi |
United States
|
| Island No. 317 |
Mississippi River, Illinois |
United States
|
| Island of Montreal |
 Quebec |
Canada
|
| Islands of St. Paul |
Maltese islands |
 Malta
|
| Islas Cíes |
belonging to the Spanish province of Pontevedra, in Galicia |
Spain
|
| Islay |
Inner Hebrides |
Scotland
|
| Isle of Man |
Irish Sea |
Crown dependency
|
| Isle of Rest |
Georgian Bay |
Canada
|
| Isle of Thanet |
British Isles |
United Kingdom
|
| Isle of Wight |
In Roman times was referred to as Vectis |
United Kingdom
|
| Isle of Youth |
Greater Antilles |
 Cuba
|
| Isola di San Michele |
Venetian Lagoon |
Italy
|
| Isola Maggiore |
Lake Trasimeno |
Italy
|
| Isra-Tu |
Dahlak Archipelago |
 Eritrea
|
| Ist |
|
Croatia
|
| Itamaracá |
|
Brazil
|
| Ithaca |
Ionian Islands |
Greece
|
| Itu Aba |
Spratly Islands |
Administered by
 Republic of China,
Claimed by:
 China,
 Vietnam, and
 Philippines
|
| Isla Ixtapa |
Ixtapa/Zihuatanejo,  Guerrero |
 Mexico
|
| Iž |
|
Croatia
|
| Izenajima |
Okinawa Islands part of the Ryukyu Islands |
Japan
|