Alca may refer to:
*
Alca, one of the districts of the province La Unión in the Arequipa region, Peru
* Advanced Light Combat Aircraft; see
Aero L-159 Alca
* ''
Alca'', a genus of birds
*
Apostolic Lutheran Church of America
The Apostolic Lutheran Church of America (ALCA) is a Laestadian Lutheran church denomination established by Finnish American and Norwegian immigrants in the 1800s. They came mainly from northern Finland and northern Norway where they had been ...
*
Alca Electronics, a UK manufacturer of video games
* The
Free Trade Area of the Americas
The Free Trade Area of the Americas (FTAA, , ALCA, Portuguese: ''Área de Livre Comércio das Américas'', ALCA, French: Zone de libre-échange des Amériques, ZLEA) was a proposed agreement to eliminate or reduce the trade barriers among all ...
, known as ''Área de Libre Comercio de las Américas'' in Spanish, and ''Área de Livre Comércio das Américas'' in Portuguese
*The
Professional Landcare Network
The National Association of Landscape Professionals, formerly known as the Professional Landcare Network (PLANET), is a professional body for lawn care professionals, landscape management professionals (exterior maintenance contractors), design/ ...
, previously known as the Associated Landscape Contractors of America
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