PFI

PFI may stand for:

• Pay for inclusion (paid inclusion), charge by a search engine to include a Web site in its index
• Pellet Fuels Institute, trade association of the wood pellet fuel industry
• Percy FitzPatrick Institute of African Ornithology
• Performance Freediving International, a freediving organization
• Popular Front of India, an Islamist organisation in India
• Port fuel injection (indirect injection), a type of fuel injection used in automobiles
• Practical Farmers of Iowa, an agriculture NGO in Iowa
• Pre-flight inspection, of an aircraft
• Private finance initiative, a way of funding public sector projects with private capital
• The Prize Fighter Inferno, a musical project of Coheed and Cambria frontman Claudio Sanchez
• Pro forma invoice, a billing document that is not a demand for payment but gives information about a shipment
• PFI Convention (Convention on the protection of the European Communities' financial interests), a multilateral EU treaty on fraud
• Perspektivnyi Frontovoy Istrebitel ("Perspective Frontline Fighter"), Soviet military aircraft; see Post-PFI Soviet/Russian aircraft projects
• PFIs, or Pharmaceutical Formulation Intermediates, a pharmaceutical term