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
See also
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This disambiguation page lists articles associated with the title PPB.
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