Barney Augustus Eaton (1853–1936) was a politician in Wisconsin.

Eaton was born on October 29, 1853, in the town of Lake, Wisconsin.

Additionally, he had been president of the village of Cudahy, Wisconsin, from 1895 to 1896, and president of the Cudahy School Board in 1895.

He also served as the director of the Lake Fire Insurance Company for six years.

[3] He is buried in Forest Home Cemetery, in Milwaukee.