The Biblioteca Cathariniana or Cateriniana is a public library in Pisa, region of Tuscany, Italy.

The library was founded in the 13th-century in the Dominican convent of Santa Caterina d’Alessandria.

A nucleus of the collection was the donation of 61 codexes by Fra Proino di Orlandino da Fabro, cofounder of the monastery and colleague of Thomas Aquinas.

In 1784, this monastery was suppressed but the Archbishop obtained the present site for the Seminary of the diocese.

The modern collection has over 20,000 volumes from 1830 onward, including 150 journals no longer published.