Lars O. Lein (May 17, 1874 – May 5, 1958) was an American farmer and politician.
Born in the Town of Albion, Dane County, Wisconsin,[1] Lein graduated from Albion Academy.
He was a farmer[2] and was involved with the creamery, tobacco, and insurance businesses.
In 1941, Lein served in the Wisconsin State Assembly and was a Progressive.
[2][3] Lein died in Fort Atkinson, Wisconsin.