EntityQ362169· pop 15· linked from 3 articlesOPASign in to saveOpa or OPA may refer to:Article16 sectionsContentsArts and mediaFictional characters and entitiesFilmMusicLaws and international agreementsOrganizationsGovernment agenciesOther organizationsPeopleScience and technologyChemistryPhysicsComputingMedicineOther usesSee alsoOpa or OPA may refer to:== Arts and media ==Read full article (17 paragraphs)ConnectionspatientEntityMatthew ModineEntity