Alca may refer to:
* Advanced Light Combat Aircraft; see
Aero L-159 Alca
* ''
Alca'', a genus of birds
* The
Free Trade Area of the Americas
The Free Trade Area of the Americas (FTAA) was a proposed agreement to eliminate or reduce the trade barriers among all countries in the Americas, excluding Cuba. Negotiations to establish the FTAA ended in failure, however, with all parties unab ...
, known as ''Área de Libre Comercio de las Américas'' in Spanish, and ''Área de Livre Comércio das Américas'' in Portuguese
*The
Professional Landcare Network, previously known as the Associated Landscape Contractors of America
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