Ala may refer to:
- Ala (demon), a female demon in Serbian and Bulgarian mythology
- Ala (Odinani), an Alusi in Odinani
- Ala (Roman allied military unit), a Republican-period, largely infantry, formation of 5,400 men
- Ala (Roman cavalry unit), an Imperial-period, purely cavalry, formation of 500 men
In language:
- à la, French for 'in the style/manner of' commonly used in English
- Wing, Ala in Latin
In geography:
- Åland Islands using ISO 3166-1 alpha-3 country code
- Alabama, a state in the U.S.
- Ala, Hiiu County, village in Pühalepa Parish, Hiiu County, Estonia
- Ala, Valga County, village in Helme Parish, Valga County, Estonia
- Ala, Iran, a village in Semnan Province, Iran
- Ala, alternate name of Alad, a village in Khuzestan Province, Iran
- Ala, Trentino, a town in Trentino, Italy
- Ala dağları, a mountain range in the Taurus chain, Turkey
In science:
- Ala ossis ilii
- Ala of sacrum
- Alae (anatomy) or ala, a feature of the anatomy of many nematodes worms
- Alanine, an α-amino acid
- Alpha lipoic acid, a nutritional supplement
- Alpha-linolenic acid, an omega-3 fatty acid
- Ala, the alar part of a nasalis muscle
- D-Aminolevulinic acid or δ-ALA
- Members of the P4-ATPase family in Arabidopsis thaliana: Aminophospholipid ATPase (ALA)
- Wing of ilium
In technology:
- Active Line Access, a standard for supply of services in fibre networks
In organizations:
- ALâ ( Adult Community Theatre, Arts and Education, ) Galway, Ireland
- Aspiring Litigators of America
- Aerotransportes Litoral Argentino, a former Argentinian airline.
- Allgemeine Anzeigen GmbH
- American Latvian Association
- American Legion Auxiliary
- American Library Association
- American Lung Association
- Arab Liberation Army
- Arakan Liberation Army
- Arizona Lutheran Academy
- Association for Laboratory Automation
- Australian Lacrosse Association
- Automobile Legal Association, a former American automobile club similar to the AAA
In codes:
- Åland Islands' ISO 3166-1 country code
- Alcatel's former NYSE stock symbol
- Almaty International Airport's IATA code
In other uses:
- A List Apart, a webzine for web designers
- USS Ala (YT-139), a ship of the US Marine
People surnamed Ala:
- Hossein Ala' (1882–1964), former prime minister of Iran