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- Pacific International University, Springfield, Missouri; originally was located in Victoria, Australia
- Pacific National University and Theological Institute, Los Angeles, California
- Pacific Southern University
- Patriot Bible University (formerly Patriot University, Colorado; claims that its accreditation is by American Accrediting Association of Theological Institutions, which is an unrecognized agency deemed to be an accreditation mill)
- Pebble Hills University, Italy - A police fraud investigation revealed that the University's "headquarters" in Seborga, Italy is a room in a building used as a cellar, also the home of ten other diploma mills: Saint Bernard University, Eurasia Community College, Instituto Latinoamericano de Psicobiofisica - I.L.A.P.; St. Paul Ottawa College & University, Phoenix International University Europe, West Coast University - WCU; The International University; Miranda International University; Marquis Open University; and James Monroe International University
- Pebbles University, Nigeria
- Penbrook University
- Pensacola Bible Institute
- Pensacola Christian College In November 2011 the college announced that it had been granted candidacy status for accreditation from the Transnational Association of Christian Colleges and Schools.
- Phoenix International University Europe
- Portland Bible College Portland, Oregon (Oregon’s Office of Degree Authorization lists this institution as unaccredited religious exempt school)
- Preston University (aka Fairmount International University)
- Preston University Pakistan
- Promis University of London
Read more about this topic: List Of Unaccredited Institutions Of Higher Education