Cai

Cai or CAI may refer to:

Places

Canadian Airlines International, a defunct Canadian airline
Capitol Archaeological Institute, an American archaeological research and education institute part of The George Washington University
Central Asia Institute, a non-profit organization that promotes education in Central Asia
Chartered Accountants Ireland, Ireland's largest accountancy body
Christian Assemblies International, an Australian-based charity organisation and religious group
Club Alpino Italiano, the Italian alpine club
Coleraine Academical Institution, a school in Northern Ireland
College of Anaesthesiologists of Ireland, a medical training body in Ireland
Community Associations Institute, an influential trade association and special interest group
Compagnia Aerea Italiana, parent company of Alitalia
Corendon Airlines (ICAO airline code)
Corpo Aereo Italiano, an element of the Italian Regia Aeronautica during the Battle of Britain
WCAI, a group of NPR radio stations in Massachusetts that is part of the WGBH Educational Foundation

Calcium–aluminium-rich inclusion, a type of mineral
Carbonic anhydrase inhibitor, in pharmacology
Codon Adaptation Index, a measure of codon bias in protein-coding DNA sequences
Cold air intake, of an automobile
Computer-aided inspection
Computer assisted instruction or e-Learning
Computer-assisted language learning
Conodont Alteration Index, an estimate of the maximum temperature reached by a sedimentary rock
Controlled Auto-Ignition, a technology of internal combustion for reciprocating engines

Cai (name), Welsh and alternative spelling of the name Kai.
Cai (surname), a common Chinese surname
Comprehensive Agreement on Investment, a proposed deal between China and the European Union
Mesoamerican languages (ISO 639-2 and ISO 639-5 codes)
Sir Kay, a character in Arthurian legend, spelt Cai in Welsh