The Bahía Blanca Argentina Temple is a temple of the Church of Jesus Christ of Latter-day Saints located in Bahía Blanca, Argentina. Announced by church president Russell M. Nelson on April 5, 2020, during general conference, it is the church's fifth temple in Argentina and the first in the country's southern region. The single-story temple has a domed steeple with stained-glass windows and a light-colored stone exterior, reflecting both traditional Latter-day Saint temple architecture and regional design influences. The temple is on an 8.14-acre site in the Aldea Romana neighborhood and also includes a 25,000-square-foot building to provide housing and services for patrons. Groundbreaking for the temple took place on April 9, 2022, under the direction of Joaquín E. Costa, a church general authority. A public open house was held from October 16 to November 1, 2025, with the temple then dedicated on November 23, 2025, by Ulisses Soares, of the Quorum of the Twelve Apostles.