CP
- CP – (i) Canadian Pacific – Check Point – Command Post - Club Penguin
- CPA – (i) Certified Public Accountant
- CPAC – (p) Conservative Political Action Conference - Cable Public Affairs Channel ("see-pack")
- CPCU – Certified Property Casualty Underwriter
- CPD – (i) Capabilities Production Document
- CPE – (i) Certificate of Proficiency in English
- CPE – (i) Certified Professional Ergonomist
- CPF – (i) Calibration Parameter File – Canadian Patrol Frigate
- CPG – (a) Clinical Practice Guideline
- CPI – (i) CERDEC Command, Power and Integration
- CPIM – (a) Certification on Production and Inventory Management
- CPON – (i) Certified Pediatric Oncology Nurse
- CPPCC – (i) Chinese People's Political Consultative Conference
- CPR – (i) Canadian Pacific Railway
- CPR – (i) Cardiopulmonary resuscitation
- CPSM – (i) Continuous Phase Shift Modulation
- CPSU – (i) Communist Party of the Soviet Union
- CPT – (i) Contingency Planning Team
- CPU – (i) Central Processing Unit – Contract Postal Unit
- CPV – (s) Cape Verde (ISO 3166 trigram)
- CPX – (p) Command Post eXercise
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