CPAP is continuous positive airway pressure, a form of positive airway pressure ventilator.
CPAP may also refer to:
Center for Public Administration and Policy, an academic department of Virginia Tech CPAP (gene), a gene that encodes Centrosomal P4.1-associated protein Coalition for the Prevention of Alcohol Problems, a public advocacy group based in Washington, D.C. Consecutive primes in arithmetic progression, a mathematical term relating to prime number series C/PAP, a code for paper and cardboard/plastic/aluminum composite in recycling code #84