| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1601  | Ilanosy | Madagascar, Upper Matsiatra Ambalavao > Ambinanindovoka > Firariantsoa Miarinarivo | populated place | S 21° 54′ 0'' | E 47° 8′ 0'' |
1602  | Ilanana Ilanana,Ilanana Riviere,Ilanana Rivière | Madagascar, Ihorombe | stream | S 22° 54′ 0'' | E 45° 23′ 0'' |
| 1603 | Ilanana Ilanana,Lalana | Madagascar, Anosy Betroka > Ambalasoa > Kelivaho | populated place | S 22° 55′ 0'' | E 46° 9′ 0'' |
| 1604 | Ilampy | Madagascar, Alaotra Mangoro Moramanga > Morarano Gara > Ambohidray | populated place | S 18° 39′ 0'' | E 48° 16′ 0'' |
| 1605 | Ilampy | Madagascar, Analanjirofo Nosy Boraha > Sainte Marie > Ambodifotatra | populated place | S 16° 59′ 0'' | E 49° 53′ 0'' |
| 1606 | Ilakatra  Ilakatra,aylakatra,ایلاکاترا | Madagascar, Fitovinany Region Vohipeno > Ilakatra > Sakavolo | populated place | S 22° 21′ 0'' | E 47° 40′ 0'' |
| 1607 | Ilakana Ilakana,Lakana Riviere,Lakana Rivière | Madagascar, Alaotra Mangoro | stream | S 17° 45′ 0'' | E 48° 18′ 0'' |
| 1608 | Ilakaka Ilakaka,Ilakaka Riviere,Ilakaka Rivière | Madagascar, Ihorombe | stream | S 22° 47′ 0'' | E 45° 22′ 0'' |
| 1609 | Ilakaka | Madagascar, Ihorombe | stream | S 22° 47′ 0'' | E 45° 13′ 0'' |
| 1610 | Ilakaka | Madagascar, Ihorombe Ihosy > Ilakaka > Mitsinjo | populated place | S 22° 45′ 0'' | E 45° 20′ 0'' |
| 1611 | Ilakaka Ilakaka,ilakaka,illakaka,irakaka,yi la ka ka,ഇലകക,ილაკაკა,イラカカ,伊拉卡卡,일라카카 | Madagascar, Ihorombe Ihosy > Ranohira > Ankiliabo Malio | populated place | S 22° 41′ 0'' | E 45° 13′ 0'' |
| 1612 | Ilaka Atsinanana ILK,Ilaka,Ilaka Atsinanana | Madagascar, Atsinanana Vatomandry > Ilaka Est > Ambalakondro | populated place | S 19° 33′ 0'' | E 48° 50′ 0'' |
| 1613 | Ilaka Afovoany Ilaka,Ilaka Afovoany,Itaka | Madagascar, Amoron'i Mania Ambositra > Ilaka Centre > Ilaka Centre | populated place | S 20° 20′ 0'' | E 47° 9′ 0'' |
| 1614 | Ilaka Iiaka,Ilaka | Madagascar, Fitovinany Region Vohipeno > Ilakatra > Ilaka | populated place | S 22° 25′ 0'' | E 47° 42′ 0'' |
| 1615 | Ilaka | Madagascar, Atsinanana Vatomandry > Ilaka Est > Antanambao | populated place | S 19° 33′ 0'' | E 48° 52′ 0'' |
| 1616 | Ilaimalaza | Madagascar, Menabe | channel | S 19° 10′ 0'' | E 44° 17′ 0'' |
| 1617 | Ilafy | Madagascar, Menabe Miandrivazo > Isalo > Mahatsinjo | populated place | S 19° 47′ 0'' | E 45° 20′ 0'' |
| 1618 | Ilafy Ilafy,aylafy,ایلافی | Madagascar, Alaotra Mangoro Ambatondrazaka > Ilafy > Ilafy | populated place | S 17° 53′ 0'' | E 48° 25′ 0'' |
| 1619 | Iladilady | Madagascar, Upper Matsiatra Ikalamavony > Solila > Tearomizaha | populated place | S 21° 31′ 0'' | E 46° 47′ 0'' |
| 1620 | Ikovy Ikovy,Ikovy Riviere,Ikovy Rivière | Madagascar, Androy | stream | S 24° 18′ 0'' | E 45° 24′ 0'' |
| 1621 | Ikoromatoby Ikormatoby,Ikoromatoby | Madagascar, Androy Ambovombe District > Andalatanosy > Koroma Toby | populated place | S 24° 41′ 0'' | E 45° 40′ 0'' |
| 1622 | Ikoroma | Madagascar, Androy Ambovombe District > Andalatanosy > Koroma Toby | populated place | S 24° 40′ 0'' | E 45° 39′ 0'' |
1623  | Ikorokota | Madagascar, Ihorombe Ihosy > Analavoka > Analavoka | mountain | S 22° 28′ 0'' | E 46° 34′ 0'' |
| 1624 | Ikopa Rivière | Madagascar, Analamanga | stream | S 18° 49′ 0'' | E 47° 21′ 0'' |
| 1625 | Ikopa River Ikopa,Ikopa Fleuve,Ikopa River | Madagascar, Betsiboka | stream | S 16° 47′ 0'' | E 46° 50′ 0'' |
| 1626 | Ikonka | Madagascar, Androy Ambovombe District > Ambovombe > Antseky Nord | populated place | S 25° 14′ 0'' | E 46° 4′ 0'' |
| 1627 | Marais d’ Ikongo | Madagascar, Atsimo-Andrefana | swamp | S 21° 46′ 0'' | E 43° 35′ 0'' |
1628  | Forêt d’ Ikongo | Madagascar, Fitovinany Region | forest(s) | S 21° 53′ 0'' | E 47° 20′ 0'' |
| 1629 | Ikongo Fort Carhot,Fort-Carnot,Ikongo,aykwngw,yi kong gu,ایکونگو,伊孔古 | Madagascar, Fitovinany Region Ikongo > Ikongo > Ambatolampy | populated place population 38,851 | S 21° 53′ 0'' | E 47° 26′ 0'' |
| 1630 | Ikongo | Madagascar, Atsimo-Andrefana Morombe District > Cu Morombe > Morafeno Mahasoa | populated place | S 21° 46′ 0'' | E 43° 33′ 0'' |
| 1631 | Ikonda Ikonda,Ikonda Riviere,Ikonda Rivière | Madagascar, Anosy | stream | S 24° 44′ 0'' | E 46° 4′ 0'' |
| 1632 | Ikonda | Madagascar, Androy Ambovombe District > Antanimora Atsimo > Ikonda Tsimiarihandry | populated place | S 24° 44′ 0'' | E 45° 44′ 0'' |
| 1633 | Ikoly | Madagascar, Amoron'i Mania | stream | S 20° 15′ 0'' | E 46° 22′ 0'' |
| 1634 | Ikokony Ikokony,Kokony | Madagascar, Vakinankaratra | stream | S 19° 38′ 0'' | E 46° 45′ 0'' |
| 1635 | Ikoka | Madagascar, Upper Matsiatra Ambalavao > Ambohimahamasina > Soatsihanino | populated place | S 21° 52′ 0'' | E 47° 12′ 0'' |
| 1636 | Ikobono | Madagascar, Upper Matsiatra Ambalavao > Ambinaniroa > Manara | populated place | S 21° 53′ 0'' | E 46° 30′ 0'' |
| 1637 | Ikoa Ikoa,Tanambao | Madagascar, Analanjirofo Nosy Boraha > Sainte Marie > Mahavelou | populated place | S 17° 1′ 0'' | E 49° 50′ 0'' |
| 1638 | Ikilempaly | Madagascar, Androy Ambovombe District > Sihanamaro > Terabovo | populated place | S 25° 13′ 0'' | E 45° 45′ 0'' |
| 1639 | Ikianja Ikianja,Kianja | Madagascar, Amoron'i Mania Ambositra > Ilaka Centre > Ikianja | populated place | S 20° 18′ 0'' | E 47° 8′ 0'' |
| 1640 | Ikelivaho Ikelivaho,Kelivaho | Madagascar, Anosy Betroka > Ambalasoa > Kelivaho | populated place | S 22° 56′ 0'' | E 46° 7′ 0'' |
| 1641 | Ikelimahery | Madagascar, Vakinankaratra | stream | S 19° 37′ 0'' | E 47° 9′ 0'' |
| 1642 | Ikato | Madagascar, Betsiboka Maevatanana > Antsiafabositra > Anosipotaka | hill | S 17° 27′ 0'' | E 47° 3′ 0'' |
| 1643 | Ikatelo | Madagascar, Amoron'i Mania Ambatofinandrahana > Soavina > Ikatelo | populated place | S 20° 21′ 0'' | E 46° 57′ 0'' |
| 1644 | Ikatefa Ikatefa,Itakefa | Madagascar, Anosy Taolagnaro > Ankariera > Bevilany | mountain | S 25° 2′ 0'' | E 46° 32′ 0'' |
1645  | Ikaroka | Madagascar, Upper Matsiatra Ikalamavony > Tsitondroina > Vohitromby | locality | S 21° 30′ 0'' | E 46° 16′ 0'' |
| 1646 | Ikaroaka | Madagascar, Itasy Miarinarivo > Ambatomanjaka > Antambiazina | mountain | S 18° 47′ 0'' | E 46° 47′ 0'' |
| 1647 | Ikaponga Rivière | Madagascar, Vakinankaratra | stream | S 19° 50′ 0'' | E 46° 30′ 0'' |
| 1648 | Ikapibahy | Madagascar, Melaky | stream | S 16° 58′ 0'' | E 45° 2′ 0'' |
| 1649 | Ikaosy Ikaosy,Ikasy | Madagascar, Menabe Mahabo > Mazavasoa > Ikaosy | populated place | S 20° 46′ 0'' | E 45° 41′ 0'' |
| 1650 | Ikana | Madagascar, Amoron'i Mania Ambatofinandrahana > Amborompotsy > Antanambao | populated place | S 20° 49′ 0'' | E 46° 15′ 0'' |
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