Jovian is the adjectival form of Jupiter and may refer to:
  • Jovian (emperor) (Flavius Iovianus Augustus), Roman emperor (363–364 AD)
  • Jovians and Herculians, Roman imperial guard corps
  • Jovian (lemur), a Coquerel's sifaka known for Zoboomafoo
  • Jovian (fiction), a hypothetical or fictional native inhabitant of the planet Jupiter
  • Jovian planet or giant planet, any large gaseous planet
  • Jovians, a non-playable race in Eve Online