- Rueda family1
- Rueda, Baltasar de, active 1553-15691
- Rueda, Bernardino de, active 1553-15691
- Rueda, Luis de, active 1553-15691
- Rueda, Rodrigo de, active 1553-15691
- Rufina, Saint, -approximately 2871
- Rustam, Amir-zadeh, Sultan1
- Sacraments--Catholic Church1
- Sacred vocal music1
- Saints1
- Salt mines and mining1
- Samaritans1
- Samarqandī, Muḥammad ibn Ashraf, active 13th century. Ashkāl al-taʼsīs1
- Science1
- Scotland--West Lothian1
- Sea fiction1
- Sea stories, Spanish1
- Sefirah period1
- Sententiarum libri IV (Peter Lombard, Bishop of Paris)1
- Sermons, German1