The Roman Catholic Diocese of Chascomús () is in Argentina and is a suffragan of the Archdiocese of La Plata.
History On 27 March 1980, Blessed John Paul II established the Diocese of Chascomús from the Archdiocese of La Plata and the Diocese of Mar del Plata.
Ordinaries
Bishops of Chascomús Rodolfo Bufano † (1980–1982), appointed bishop of San Justo José María Montes † (1983–1996), retired Juan Carlos Maccarone † (1996–1999), appointed bishop of Santiago del Estero Carlos Humberto Malfa (2000–2024), retired Juan Liébana (2024–Present)
Auxiliary Bishop
José María Baliña (2025-Present)
References