Agartha (sometimes Agharta, Agartta, Agharti, Agarath, Agarta or Agarttha) is a mythical kingdom that appears in occultist writings.

These terms or variations upon them may also be used to refer to:

Agharta, a 1975 live album by Miles Davis Agharta, a manga series by Takaharu Matsumoto Agharta: The Hollow Earth, a 2000 video game “Aghartha”, a 2009 song from the Sunn O))) album Monoliths & Dimensions "Argatha", a 2015 song from the Sword album High Country Agartha, a 2017 album by Vald "Agartha", a 2023 composition for flute and electronic sounds by Juan María Solare Ergenekon (allegation), a Turkish coup trial also referred to as "Ergenekon/Agartha"