CLA
- California Library Association
- Canadian Lacrosse Association
- Canadian Library Association
- Canadian Lung Association
- Caprivi Liberation Army
- CargoLogicAir
- Carry-lookahead adder
- Caseous lymphadenitis
- Causal layered analysis
- Centro de Lançamento de Alcântara
- Children's Learning Adventure
- Chris Lord-Alge
- Christian Labor Association
- Cla Meredith
- Clandon railway station
- Claremont (Amtrak station)
- Clayton railway station, Melbourne
- CliftonLarsonAllen
- Clutterers Anonymous
- Clã
- Codices Latini Antiquiores
- Collective labour agreement
- College of Liberal Arts (disambiguation)
- Collegiate Learning Assessment
- Comilla Airport
- Commonwealth Lawyers Association
- Communist League of America
- Congenital lactic acidosis
- Conjugated linoleic acid
- Connecticut Library Association
- Contributor License Agreement
- Copyright Licensing Agency
- Cortical Learning Algorithm
- Country Land and Business Association
- County Clare
- Mercedes-Benz CLA