Names of the Underworld
Aztec mythology
Mictlan
Babylonian mythology
Kurnugia, Arallu (also sumerian)
Buddhist mythology
Naraka (also Niraya)
Celtic mythology
Annwn, Mag Mell
Chinese mythology
Yum gan (陰間) is an underworld though not necessarily negative like Diyu (地獄)
Christian mythology
Sheol/Hadēs (Abode of the dead), Gehenna/Tártaros (Hell), Abaddon, Limbo, Purgatory, Annihilationism
Egyptian mythology
Aaru, Duat, Neter-khertet, Amenti
Estonian mythology
Toonela
Fijian mythology
see Melanesian mythology.
Finnish mythology
Tuonela
Greek mythology
Main article: Greek underworld
Elysium, Asphodel Meadows, Hadēs, Tártaros
Hebrew mythology [disambiguation needed]
Sheol, Gehenna
Hindu mythology
Naraka, Yamaloka, Patala
Hungarian mythology
Alvilág
Inca mythology
Uku Pacha
Inuit mythology
Adlivun
Islamic mythology
Jahannam, Narr [disambiguation needed], Jannah, Barzakh, Araf
Japanese mythology
Yomi, Jigoku
Korean Mythology
"Ji-Ok" 지옥 地獄
Latvian mythology
Aizsaule
Māori mythology
Hawaiki
Mapuche mythology
Pellumawida, Degin, Wenuleufu, Ngullchenmaiwe
Maya mythology
Metnal, Xibalba
Melanesian mythology
(includes Fijian) Bulu, Burotu, Murimuria, Nabangatai, Tuma [disambiguation needed]
Norse mythology
Gimlé, Hel, Niflheim, Vingólf
Oromo mythology
Ekera
Philippine mythology
Kasanaan, Empiyerno
Polynesian mythology
Avaiki, Bulotu, Iva, Lua-o-Milu, Nga- Atua, Pulotu, Rangi Tuarea, Te Toi-o-nga-Ranga, Uranga-o-Te-Ra
Pueblo mythology
Shipap
Roman myth