Guallatiri
Chile
Volcano
Haleakalā
United States
Shield volcano
Hayes Volcano
United States
Stratovolcano
Hertali
Ethiopia
Fissure vent
Hualālai
United States
Shield volcano
Indian Heaven
United States
volcanic field
Ingakslugwat Hills
United States
Cinder cones
Isanotski Peaks
United States
Stratovolcano
Izu-Tobu
Japan
Pyroclastic cones
Jackson Volcano
United States
(unknown, extinct)
Jom-Bolok
Russia
Jordan Craters
United States
Volcanic field
Jornada del Muerto Volcano
United States
Basaltic shield volcano, volcanic field
Kaikohe-Bay of Islands volcanic field
New Zealand
Kanaga Volcano
United States
Stratovolcano
Kasatochi Island
United States
Kawaikini
United States
{{Flatlist|
Kejulik Volcano
United States
Stratovolcano
Kohala
United States
Shield volcano, Hotspot volcano
Koko Crater
United States
Tuff cone
Koniuji Island
United States
Stratovolcano
Korovin Volcano
United States
Stratovolcano
Krakatoa
Indonesia
Caldera
La Garita Caldera
United States
Caldera
Laguna del Maule
Chile
Volcanic field
Lassen Peak
United States
Lava dome
Llullaillaco
Argentina
Stratovolcano
Mahogany Mountain
United States
Maiden Peak
United States
Shield volcano
Mammoth Mountain
United States
Lava dome complex
Mangakino Caldera
New Zealand
Caldera
Markagunt Plateau
United States
Marysvale volcanic field
United States
Volcanic field
Mauna Kea
United States
Shield volcano
Mauna Loa
United States
Shield volcano
Mauŋa
Chile
Shield volcano