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.

The Pembina Valley is an informal geographic region of the Canadian province of Manitoba. It is named for its major geographical feature, the Pembina Valley, which runs through the southwestern part of the region.