OPF may refer to:
Science and technology Gasoline particulate filter (German: Otto particle filter), capturing soot particles from the petrol engine exhaust gases OEB Package Format, an eBook format OpenProject Foundation, the foundation for the open source web-based application OpenProject, registered 2012 in Berlin, Germany Optimal power flow, a technique used to simulate load flow through an AC power system
Other uses Miami-Opa Locka Executive Airport (IATA and FAA LID: OPF), Florida, US Oceania Pickleball Federation, a "continental" sport oversight organization Operation Project Freedom, a 2026 United States military operation Orbiter Processing Facility, a class of hangars at Kennedy Space Center, Florida, US