- Spalatin, Georg, 1484-15451
- Spandakārikā (Vasugupta)1
- Spaniards1
- Spanish (culture or style)1
- Spanish colonies1
- Spanish fiction1
- Spanish fiction--Classical period1
- Spanish poetry--Classical period1
- Spannocchi, Ambrosio1
- Sparano, Matteo1
- Speculation1
- Spedale di Santa Maria Annunziata (San Miniato, Italy)1
- Spedale di Santa Maria della Scala (Siena, Italy)1
- Spedalingo, Antonio1
- Spedalingo, Taddeo1
- Speeches, addresses, etc., Arabic1
- Speziale, Giovanni1
- Sphaera mundi (Sacro Bosco, Joannes de)1
- Sphere1
- Spherical trigonometry1