Author
- Rṣiśarman1
- Sadāśivaśāstri Sahasabudhya1
- Saʻīd ibn Hibat Allāh ibn al-Ḥusayn1
- Saṃvarta1
- Saṅkhā1
- Seneca1
- Shakalya1
- Somadaivajña (Son of Rudrabhaṭṭa)1
- Sriharsha1
- Svapneśvara1
- Svayamprakāśayati1
- Theophrastus1
- Trimallabhaṭṭa1
- Tryambaka Māṭe1
- Tryaṃbaka (Son of Nārāyaṇa)1
- Udayaṅkara1
- Ujjvaladatta1
- Upaniṣadbrahmayogi1
- Urbanus Rhegius1
- Urso of Calabria1