The Diocese of Alto Valle del Río Negro is a Latin Church diocese of the Catholic Church in Argentina. Erected on 22 July 1993, it is a suffragan diocese of the Archdiocese of Bahía Blanca.
Ordinaries
- José Pedro Pozzi, S.D.B. (1993–2003)
- Néstor Hugo Navarro (2003–2010)
- Marcelo Alejandro Cuenca (2010–2021)
- Alejandro Pablo Benna (2021–2025)