PFO may refer to:
- Patent foramen ovale - a blood-flow pathway between a human heart's atriums, normally naturally closed after birth
- Personal Freedom Outreach - an Evangelical organization opposing cults
- Pittsburgh Film Office
- IATA code for Paphos International Airport
- Pathfinder Roleplaying Game - online version
- Persistent Felony Offender - a defendant accused under a three-strikes law
- Hong Kong's Public Finance Ordinance.
This disambiguation page lists articles associated with the title PFO.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.