Encyclopedias, Almanacs, Transcripts, and Maps
- Subsidiarity in the Church
- Subsistence
- Subsistence (In Christology)
- Substance and Accident
- Substantial Change
- Succoth-Benoth
- Suceava
- Sudan, The Catholic Church in
- Suedfeld, Gabriel
- Suenens, Leon-Joseph
- Suesskind von Trimberg
- Suetonius°
- Suffering Servant, Songs of the
- Sufficient Reason, Principle of
- Ṣūfīsm
- Sugar Industry and Trade
- Sugar, John, Bl.
- Sugar, Sir Alan
- Suger of Saint-Denis
- Sugerman, Sir Bernard