Seymour Eaton (May 7, 1859[1] – March 16, 1916) was a Canadian-born American author, journalist, editor, and publisher.

[6][4] Eaton founded, in the United States and Britain, the Booklovers' and Tabard Inn libraries.

He wrote several college textbooks, the novel: Dan Black, Editor and Proprietor, and children's books The Roosevelt Bears and Prince Domino and Muffles, written under the pen name Paul Piper.

[6][4] Eaton married Jennie V. Adair in Winnipeg, Manitoba, on January 15, 1884.

They had three sons: Frank, Jack, and Seymour Jr.[6][4][8] Eaton died at his home in Lansdowne, Pennsylvania, aged 56.