Celsius, an airship in Final Fantasy X-2.

Celsius is a unit of temperature. Celsius may also refer to:

Celsus (Greek: Κέλσος) was a 2nd century Greek philosopher and opponent of Christianity. He is known to us mainly through the reputation of his literary work, The True Word (Account, Doctrine or Discourse) (Λόγος 'AληΘής), almost...

Anders Celsius (1701–1744), Swedish astronomer and inventor of the Celsius temperature scale

Celsius Mission, the flight of Swedish ESA astronaut Christer Fuglesang to the International Space Station; see Christer Fuglesang

Celsius (comics), a DC Comics superhero

Celsius energy drink, marketed initially by EliteFX (now known as Celsius Holdings, Incorporated)

Celsius (crater), a lunar crater

Celcius (album), a rap album by Tech N9ne

a Summon Spirit in Tales of Symphonia, Tales of Eternia and other Tales games