Athenaeum can refer to any of:

• Athenaeum—a rock band from Greensboro is a city located in Guilford County in North Carolina, a state of the United States of America. As of the 2000 census, the city had a total population of 223,891 making it the third most populous city in North Carolina. It is located at the intersection of... Greensboro, North Carolina—and their eponymous album.
• Athenaeum—a London literary magazine published between 1828 and 1921.
• The Athenaeum Club in London — containing the City of London — is the capital of the United Kingdom and of England and a major world city. With over seven million inhabitants (Londoners) in Greater London area, it is amongst the most densely populated areas in Western Europe. Founded as Londinium, the capital of... London.
• The Athenaeum, Paris—an academic institution that existed in the early Alternative meaning: Nineteenth Century (periodical) (18th century — 19th century — 20th century — more centuries) As a means of recording the passage of time, the 19th century was that century which lasted from 1801-1900 in the sense of the Gregorian calendar. In the sense of the Common Era... nineteenth century.
• The Ateneul Român The Romanian Athenaeum (Romanian Ateneu Român, definite article form Ateneul Român) in the center of Bucharest, Romania. Opened in 1888, the ornate, domed, circular building is the citys main concert hall and the home of the George Enescu Philharmonic and the home of an... Romanian Athenaeum in Bucharest (population 2.3 million, Romanian: Bucureşti) is the capital city and industrial and commercial centre of Romania, located in the southeast of the country, on the Dâmboviţa river. Geography Along a small tributary of Dâmboviţa, named Colentina, several lakes... Bucharest