Biblioteca Iberoamericana Octavio Paz, Academic library in central Guadalajara, Mexico.

Biblioteca Iberoamericana Octavio Paz is a research library in the historic center of Guadalajara, housed in a building that holds a wide collection of works on Mexican and Latin American literature, history, and the arts. The collection spans several floors, with reading rooms open to the public and archival materials available for consultation.

The building was originally the church of the Jesuit College of Santo Tomás de Aquino, dating from the 16th century. After the Jesuits were expelled in 1767, it became the seat of the Real Universidad de Guadalajara, founded by royal decree in 1791 and opened in 1793. In 1827 the university was closed and the building was remodeled with a neoclassical facade for the Jalisco legislature. It later served as a military barracks during the Mexican Revolution, a telegraph office from 1948 to 1985, and was restored before opening as the Iberoamerican Library on 19 July 1991 during the first Ibero-American Summit.

The library serves as a meeting place where readers and researchers engage with Latin American works and participate in regular exhibitions and discussion events. Visitors can observe how different cultures and languages across the continent are represented through the collection.

The library is open on weekdays and staff can help with locating documents and navigating the archival sections. Morning visits tend to be quieter, which makes it easier to settle into the reading rooms without distraction.

The archive holds original handwritten documents from the 16th and 17th centuries that very few visitors ever ask to see, yet they are available for consultation on request. These texts show how written culture in Mexico developed from the early colonial period onward.