IOR

• Eromanga Refinery
• I.O.R.
• Importer of record
• Inclusive or
• Independent Order of Rechabites
• Index of refraction
• India Office Records
• Indian Ocean Rim Association
• Inhibition of return
• Inishmore Aerodrome
• Institute for the Works of Religion
• Institute of Refrigeration
• International Offshore Rule
• Interoperable Object Reference
• Istituto per le Opere di Religione