P27

P27 may refer to:


 * CDKN1B, cyclin-dependent kinase inhibitor 1B
 * ČZ vz. 27, a pistol
 * IFI27, interferon alpha-inducible protein 27
 * Papyrus 27, a biblical manuscript
 * Phosphorus-27, an isotope of phosphorus
 * Pixley Airport, in Tulare County, California, United States
 * Projekt-27, an intelligence-gathering unit of the Swiss Armed Forces