PKB

PKB是一三字母缩写，可能指：
 Polski Kurs Blendera, a Polish website with online Blender courses in Polish, licenced as CC-BY
 Państwowy Korpus Bezpieczeństwa, a Polish underground police force during World War II
 The National Awakening Party of Indonesia, from the abbreviation for its name in Indonesian
 碱解离常数，即pKb或pKB，是一种化合物的描述参数。
 蛋白激酶B，亦被称为AKT，是一种在信号转导中起着重要作用的酶。
 Pacamor Kubar Bearings in Troy, NY domestically manufactures miniature and instrument ball bearings for aerospace, guidance, military, medical, dental, and other high precision applications. 
 Mid-Ohio Valley Regional Airport in Parkersburg, West Virginia
 Package Body, filename extension (.pkb) for PL/SQL program code modules in the Oracle Database
 Personal knowledge base, a type of electronic tool for managing an individual's knowledge
 Pot calling the kettle black, in Usenet slang