Aster (genus), a genus of flowering plants
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, Italy and the United Kingdom
USS Aster, a Civil War Union Navy tugboat
HMS Aster, two Royal Navy ships
Belgian minehunter Aster (M915), ship
Operation Aster, by the Soviet Army in 1944 in Estonia
Businesses
Aster (restaurant), a restaurant in Mission, California
Aster (venture capital company)
Aster Data Systems, an American data management and analysis software company
Aster DM Healthcare, an Indian health care provider
