CPN

CPN may refer to:

• Calpine Corporation, New York Stock Exchange symbol CPN
• Carnivorous Plant Newsletter
• Carpinteria (Amtrak station), California, Amtrak station code CPN
• Caspian Airlines (Iran), ICAO airline designator CPN
• Celiac plexus neurolysis, in medicine, the chemical ablation of the celiac plexus
• Central Park North (disambiguation)
• Central Pattana, Stock Exchange of Thailand symbol CPN
• Chlamydia pneumoniae, generally Cpn or CpN
• Citizen Potawatomi Nation, a federally recognized tribe of Potawatomi people located in Oklahoma
• Clapham North tube station, London, London Underground station code CPN
• Coloured Petri net
• Communist Party of Nepal
• Communist Party of the Netherlands
• Community psychiatric nurse
• Complex projective space, $\mathbb{ℂ}{\mathrm{P}}^n$
• Confederation of the Polish Nobility
• Country and Progressive National Party, early 20th-century political party in Queensland, Australia
• Lysine carboxypeptidase, an enzyme
• Community Protection Notice in the United Kingdom