Zumsteins is a locality in western Victoria, Australia. The locality is in the Shire of Northern Grampians, 262 kilometres west of the state capital, Melbourne—entirely inside the Grampians National Park.
At the 2016 census, there were no permanent residents at Zumsteins.
Zumsteins was one of Australia's first holiday retreats. Walter Zumstein first visited this site in 1906 while working as a young beekeeper for Barnes Honey. In 1910, he established his own apiary, with 60 hives and a small timber cottage. He saw active service in World War I, and when he returned to Australia with his Scottish wife Jean, he decided to supplement their modest income by establishing a small 'tourist retreat.'
During the 1930s the couple built three pisé, or rammed earth cottages, plus a tennis court and a large swimming pool. Water for the pool was taken from the nearby MacKenzie River. Soil excavated to create the swimming pool was used to build the cottages. The cottages are recognised on the Victorian Heritage Register as some of the very few pisé buildings using local materials from the early 20th century.
The couple remained at Zumsteins until the late 1950s, when they moved to Horsham.