Altona is a town in southern Manitoba, Canada, about 100 km south-west of Winnipeg and 158 km north of Grand Forks, North Dakota. The population at the 2021 Census was 4,390 residents. Old Altona was founded in 1880 by Plautdietsch-speaking Mennonites from the Russian Empire. It is surrounded by the Municipality of Rhineland. Much of the surrounding area is devoted to farming and agriculture-based business.