Hachijo-jima - Japan
Hachimantai - Japan
Hakkoda Group - Japan
Hakone - Japan Extra
Haku-san - Japan
Haleakala - Hawaii (see also East Maui)
Halla - South Korea
Hamaririn - Iceland
Hanauma Bay Craters - Hawaii
Hanish - Yemen
Harcourt - Antarctica
Hargy - Papua New Guinea
Harimkotan - Russia
Haroharo Caldera - New Zealand
Harra es Sawad Volcanic Field - Yemen
Harra of Arhab Volcanic Field - Yemen
Harra of Bal Haf Volcanic Field - Yemen
Harras of Dhamar Volcanic Field - Saudi Arabia
Harrat Ash-Shamah - Saudi Arabia
Harrat Ash-Shamah Volcanic Field - Saudi Arabia
Harrat ar Rahah Volcanic Field - Saudi Arabia
Harrat Ithnayn - Saudia Arabia
Harrat Khaybar Volcanic Field - Saudi Arabia
Harrat Kishb Volcanic Field - Saudi Arabia
Harrat Lunayyir Volcanic Field - Saudi Arabia
Harrat Hutaymah Volcanic Field - Saudi Arabia

Al Hutaymah
Jabal al Misharikah
Jabal Awared
Jabal Dilham
Jabal Duwayrah
Jabal Halat Utaynah
Jabal Salma
Harrat ad Dakhana
Harrat ad Dehama
Harrat al Didadib
Samra as Safra
Shurmah cone
Tabah

Harrat Rahat Volcanic Field - Saudi Arabia
Harat Uwayrid - Saudi Arabia
Haruj - Libya
Haruna - Japan
Hasan Dagi - Turkey
Haut Dong Nai Volcanic Field - Vietnam
Hayes - Alaska         Extra
Hayli Gubbi - Ethiopia
Heard Island - Australia         Extra
Heart Peaks - Canada
Hekla - Iceland         Extra
Helatoba-Tarutung Volcanic Field - Indonesia
Helgafell - Iceland
Hell's Half Acre - Idaho
Hengill - Iceland
Herbert - Alaska
Herdubreid - Iceland
Hertali - Ethiopia
Hibok-hibok - Philippines         Extra
Hierro - Canary Islands         Extra
Higashi-yama (Mihara-yama) - Japan
Hijiori - Japan
Hillman Peak - Oregon
Hiri - Indonesia
Hiuchi - Japan
Hobicha Caldera - Ethiopia
Hodson - S. Sandwich Islands
Hofsjokull - Iceland
Homa Mountain - Kenya
Home Reef - Tonga
Honggeertu - China
Hood - Oregon         Extra         Extra
Hoodoo Mountain - Canada
Hornopiren - Chile
Hualalai - Hawaii         Extra         Extra
Huanquihue Group - Argentina
Huaynaputina - Peru         Extra
Hudson - Chile         Extra
Hudson Mountains - Antarctica
Huelemolle - Chile
Huequi - Chile
Huila - Colombia
Hulubelu - Indonesia
Hunga Tonga-Hunga Ha'apai - Tonga
Hunter Island - Pacific Ocean (France)
Hunt's Hole - New Mexico
Hutapanjang - Indonesia
Hveravellir Hot Springs - Iceland
Hydrographers Range - Papua New Guinea
Iamelele - Papua New Guinea
Ibu - Indonesia         Extra
Ibusuki Volcanic Field - Japan
Ichinsky - Russia
Iettunup - Russia
Igwisi Hills - Tanzania
Ijen - Indonesia         Iktunup - Russia
Ile aux Cochons - Indian Ocean (France)
Ile de L' Est - Indian Ocean
Ile de la Possession - Indian Ocean
Ile des Cendres - Vietnam
Iliamna - Alaska         Extra
Ili Boleng - Indonesia         Extra
IliLabalekan - Indonesia
IliMuda - Indonesia
Iliniza - Ecuador         Extra
Iliwerung - Indonesia
Illimani - Bolivia
Ilopango - El Salvador         Extra         Extra
Ilyinsky - Russia         Extra
Imabura - Ecuador
Imagination Peak - Oregon
Imun - Indonesia
Imuruk Lake - Alaska
Indian Heaven Volcanic Field - Washington         Extra

Berry Mountain
Bird Mountain
East Crater
Gifford Peak
Lemei Rock
Lone Butte
Red Mountain
Sawtooth Mountain

Ingakslugwat Hills - Alaska
Inielika - Indonesia
Inierie - Indonesia
Inyo Craters - California
Ipala Volcanic Field - Guatemala
Iraya - Philippines         Extra
Irazu - Costa Rica         Extra
Iriga - Philippines
Iriomote-jima - Japan
Irruputuncu - Chile/Bolivia         Extra
Isabela - Galapagos Islands
Isanotski - Alaska         Extra
Isarog - Philippines
Ischia - Italy
Iskut-Unuk River Cones - Canada
Isla de Lanzarote - Canary Islands
Isla el Tigre - Honduras
Isla San Luis - Mexico
Isla Tortuga - Mexico
Isla Zacate Grande - Honduras
Isluga - Chile         Extra
Itasy Volcanic Field - Madagascar
Iult - Russia
Ivao Group - Russia
Iwaki - Japan
Iwate - Japan
Iwo-jima - Japan         Extra
Iwo-Tori-shima - Japan
Ixtepeque - Guatemala
Iya - Indonesia
Iyang-Argapura - Indonesia
Izalco - El Salvador         Extra         Extra
Iztaccihuatl - Mexico         Extra
Izu-Tobu - Japan         Extra
Izumbwe-Mpoli - Tanzania
Jabal El-Marha - Saudi Arabia
Jabal Hamman Demt - Yemen
Jabal Haylan Volcanic Field - Yemen
Jabal Yar Volcanic Field - Saudi Arabia
Jackies Butte Volcanic Field - Oregon
Jailolo - Indonesia         Extra
Jalajala Volcanic Field - Philippines
Jalua - Eritrea
Jan Mayen - Atlantic Ocean (Norway)
Jaraguay Volcanic Field - Mexico
Jebel at Tair - Yemen
Jebel Marra Volcanic Field - Sudan         Extra
Jebel Umm Arafieb - Sudan
Jebel Zubair - Yemen
Jefferson - Oregon         Extra         Extra
Jemez - New Mexico
Jinaishima - Japan
Jingpohu - China
Jocotitlan - Mexico
Jordan Craters - Oregon         Extra         Extra
Jornada del Muerte - New Mexico
Jorullo - Mexico