Jorge Mayer (20 November 1915 – 25 December 2010) was the Roman Catholic Archbishop of the Archdiocese of Bahía Blanca, Argentina from 1972 to 1991.
Mayer was born in San Miguel Arcángel, Adolfo Alsina Partido, Buenos Aires Province; he was of Volga German descent.
Ordained a priest on 24 March 1940, he was named bishop of the Diocese of Santa Rosa, La Pampa Province, on 9 July 1957.
On 31 May 1972 Pope Paul VI appointed him Archbishop of Bahía Blanca, succeeding Germiniano Esorto.
He took over in a formal Mass on 21 July 1972 until he resigned to his Pastoral task on 31 May 1991, upon turning 80 years of age, as established by the Pope.