PPB
# PPB

PPB can stand for:

* Production possibility boundary , a concept in economics
* Parts per billion, describing small values of miscellaneous dimensionless quantities
* Portland Police Bureau, in Portland, Oregon, U.S.
* Partido Progressista Brasileiro, former name of Progressive Party of Brazil
* Pleuropulmonary blastoma, a type of lung cancer
* PPB Group, a Malaysian company
