William Ellison Mills (April 28, 1859 – September 18, 1930) was an American leather manufacturer and politician from New York.
[2] After finishing public school at 16, Mills began conducting a retail meat market.
In 1884, they sold the business and started manufacturing leather under the name Mills Brothers Company.
In 1905, he was elected to the New York State Assembly as a Republican, representing Fulton and Hamilton Counties.
He was president of the board of managers of the Nathan Littauer Hospital, president of the board of trustees for the Gloversville YMCA, a trustee of the Troy Conference Academy, and a director of the Gloversville Chamber of Commerce.