| Jurisdiction: | Diocese |
| Tilarán-Liberia | |
| Latin: | Dioecesis Tilaranensis-Liberiana |
| Local: | Diócesis de Tilarán-Liberia |
| Country: | Costa Rica |
| Metropolitan: | Hugo Barrantes Ureña |
| Province: | Province of San José de Costa Rica |
| Area Km2: | 12,500 |
| Population: | 453,000 |
| Population As Of: | 2014 |
| Catholics: | 384,000 |
| Catholics Percent: | 84.8 |
| Parishes: | 34 |
| Denomination: | Catholic Church |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 22 July 1961 (years ago) |
| Cocathedral: | Cathedral of the Immaculate Conception |
| Priests: | 62 |
| Bishop Title: | Bishop |
| Bishop: | Manuel Eugenio Salazar Mora |
| Map: | Costa Rica - Diocesi di Tilarán-Liberia.jpg |
The Diocese of Tilarán-Liberia (Latin: Dioecesis Tilaranensis-Liberiana) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Costa Rica. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of San José de Costa Rica. It was erected as a diocese on 22 July 1961.
| Year | Along with | To form | |
|---|---|---|---|
| 1995 | Diocese of Ciudad Quesada | ||
| 1998 | Diocese of Puntarenas |