PKB

PKB is a three-letter abbreviation that may refer to:

• Państwowy Korpus Bezpieczeństwa, WWII Polish underground police
• Patients Know Best, a tool for allowing the patient to share medical records with clinicians
• National Awakening Party (Partai Kebangkitan Bangsa), an Islamic political party in Indonesia
• Base dissociation constant pK_b of a chemical compound
• Protein kinase B, an enzyme
• Mid-Ohio Valley Regional Airport in Parkersburg, West Virginia, US
• Personal knowledge base, a subjective database
• PerfKit Benchmarker of cloud performance
• PKB Corporation, a Serbian agribusiness company