Aster or ASTER may refer to:

Biology

* Aster (genus), ''Aster'' (genus), a genus of flowering plants ** List of Aster synonyms, List of ''Aster'' synonyms, other genera formerly included in ''Aster'' and still called asters in English * Aster (cell biology), a cellular structure shaped like a star, formed around each centrosome during mitosis * Aster, a star-shaped sponge spicule

Automobiles

* Ateliers de Construction Mecanique l'Aster, a French automobile and engine manufacturer from 1900 to 1910 * Aster Società Italiana Motori, an Italian automobile manufacturer from 1906 to 1908 * Aster (automobile), a British automobile manufactured between 1922 and 1930

Military

* Aster (missile family), a family of Surface to Air Missiles, produced jointly by France, Great Britain, and Italy * USS Aster, USS ''Aster'', a Civil War Union Navy tugboat * , two Royal Navy ships * Belgian minehunter Aster (M915), Belgian minehunter ''Aster'' (M915), ship * Operation Aster, by the Soviet Army in 1944 in Estonia

Businesses

* Aster (venture capital company) * Aster Data Systems, an American data management and analysis software company * Aster DM Healthcare, an Indian health care provider

Fictional characters

* Aster Laker, a supporting character from the game'' Tales of Symphonia: Dawn of the New World'' * Aster Phoenix, from the Japanese anime ''Yu-Gi-Oh! GX'' * E. Aster Bunnymund, a re-imagining of the Easter Bunny in the 2012 animated film ''Rise of the Guardians'' * Molly Aster, from the ''Peter Pan'' series * Sajit Aster, from the Japanese manga ''Waltz in a White Dress'' * Neve, Gliz and Aster, official mascots of the 2006 Winter Paralympics

People

* Aster (name), a list of people with either the given name or surname * Aster Berkhof, a pen name of Belgian writer Lodewijk Paulina Van Den Bergh (1920–2020) * Jack Aster, newspaper pen name of Walter Russell Crampton (1877–1938), Australian trade unionist, journalist and politician

Places

* Aster, Edmonton, a neighbourhood in Canada * Aster Glacier, Antarctica * 1218 Aster, a main-belt asteroid

Other uses

* Aster (typeface), a serif-class of typeface * ASTER (sensor), a Japanese sensor on board the Terra satellite * ASTER (spacecraft), a 2021 spacecraft mission by Brazil * Aster CT-80, a 1982 Dutch home computer * Aster MIMS, a hospital in Kozhikode, India