Encyclopedias, Almanacs, Transcripts, and Maps
- Printing Technologies
- Printing, Hebrew
- Prinz, Joachim
- Prior Marriage (Impediment to Marriage)
- Prioress
- Priory
- Prisca (Pricilla) and Aquila
- Prisca Versio
- Priscilla, St.
- Priscillian
- Priscillianism
- Priscus
- Pritchard, Humphrey, Bl.
- Pritzker
- Privation (Philosophy)
- Pro Juárez, Miguel Agustín, Bl.
- Pro Mundi Vita
- Probabiliorism
- Probabilism
- Probst, Ferdinand