AET may refer to:
Aetna, Inc. /ˈɛtnə/ (stylized as ætna) is an American managed health care company, which sells traditional and consumer directed health care insurance plans and related services, such as medical, pharmaceutical, dental, behavioral health, long-term care, and disability plans.
Æthelred Eldridge (born James Edward Leonard Eldridge on April 21, 1930, in Monroe, Michigan) is an academic and avant-garde painter.
Aetna is an unincorporated community in Craighead County, Arkansas, United States. It lies at an elevation of 404 feet (123 m).
Aetosaurs (aetosaur /eɪˌɛtoʊˈsɔːr/; order name Aetosauria /eɪˌɛtoʊˈsɔːriə/; from Greek, ἀετός (aetos, "eagle") and σαυρος (sauros, "lizard")) are an extinct order of heavily armoured, medium- to large-sized Late Triassic herbivorous archosaurs.
According to ancient and medieval science, aether (Greek: αἰθήρ aithēr), also spelled æther or ether, also called quintessence, is the material that fills the region of the universe above the terrestrial sphere.
Aethes bomonana is a species of moth of the family Tortricidae. It is found in the United States, where it has been recorded from Florida, Indiana, Louisiana and Ohio.
The Aetherius Society is a millenarian, New Age, UFO religion. It was founded by George King in the mid-1950s as the result of what King claimed were contacts with extraterrestrial intelligences, whom he referred to as “Cosmic Masters”.
Aetheorhiza is a genus of flowering plants in the daisy family described as a genus in 1827.
Aetolia-Acarnania (Greek: Αιτωλοακαρνανία, Aitoloakarnanía) is one of the regional units of Greece. It is part of the geographic region of Central Greece and the administrative region of West Greece.