Australis (Latin for southern or of the south) may refer to:
Science and technology Australis, codename for an updated interface of Mozilla Firefox web browser Australis II, an Australian Bureau of Meteorology supercomputer Australis (elm hybrid), a type of tree Commelina virginica L. var. australis, a synonym for Commelina erecta Terra Australis, or Australis, a hypothetical continent used on 15th–18th century maps
Transportation Australis Motors, an Australian automobile manufactured from 1897 to 1907 SS America (1940), a passenger ship that sailed under the name Australis from 1964 to 1978
Other uses
Australis, the Latin derivation of the name of Australia, the country Australis, a type of enemy in the video game Dino Crisis 3 Australis, a brand of cosmetics created in Australia by the Gance brothers, who later founded Chemist Warehouse Australis (musical project), the new age music Chemist Warehouse project created in 2004 by Oscar Aguayo Australis Aquaculture, a sustainable seafood company based in Turners Falls, Massachusetts Australis Media, a former group participating in the Galaxy television channel
See also Aurora Australis, also known as the Southern Lights