| Jurisdiction: | Territorial Prelature |
| Ayaviri | |
| Latin: | Praelatura Territorialis Ayaviriensis |
| Country: |  Peru |
| Rite: | Latin Rite |
| Area Km2: | 20,713 |
| Population: | 179,596 |
| Population As Of: | 2019 |
| Catholics: | 152,656 |
| Catholics Percent: | 85.0 |
| Bishop: | Sede vacante |
| Website: | www.prelaturaayaviri.org |
The Territorial Prelature of Ayaviri (Latin: Praelatura Territorialis Ayaviriensis) is a Roman Catholic territorial prelature located in the city of Ayaviri in the ecclesiastical province of Arequipa in Peru.
On 30 July 1958, the Territorial Prelature of Ayaviri was established from the Diocese of Puno.On 3 April 2019 from its and the Roman Catholic Territorial Prelature of Juli was established the Roman Catholic Territorial Prelature of Santiago Apóstol de Huancané