Title
- Sharḥ al-Jāmiʻ al-ṣaghīr1
- Sharḥ al-Kāfiyah1
- Sibylline oracles1
- Siddur1
- Sins1
- Sir Edwin Pears Gospels1
- Song of Solomon1
- Speculum monachorum1
- Sphaera mundi1
- Summa1
- Summa Abel1
- Summa de casibus poenitentia1
- Summa de poenitentia1
- Summa de virutibus et vitiis1
- Summa theologiae1
- Summae Guillelmi Altissiodorensis1
- Summula pauperum1
- Sunan1
- Tasʹhīl al-naẓar wa-taʻjīl al-ẓafar1
- Taḥrīr al-taḥbīr1