Galga is a settlement in the northern Murray Mallee region of South Australia. The town of Galga was surveyed in 1915 after the Waikerie railway line from Karoonda to Waikerie was opened in 1914. The line was shortend to Galga in 1990, and closed completely in 1994. There is a small bulk grain silo at Galga, but it is no longer regularly used. Galga has an active Country Fire Service brigade with one fire truck.