Arthur Egerton Sixsmith was a Canadian professional ice hockey rover and businessman. He played for the Ottawa Hockey Club and later moved to Pittsburgh to play professionally. He was a member of the Ottawa's 1901 CAHL championship team. As one of the first professional ice hockey players, he captained and managed several of the championship teams in the Western Pennsylvania Hockey League (WPHL). His brother, Garnet Sixsmith, also played professionally in Pittsburgh.

The Western Pennsylvania Hockey League (WPHL) was an originally amateur and later professional ice hockey league founded in 1896 and existing through 1909. Based in Pittsburgh, Pennsylvania, the league became the pre-eminent ice hockey league in the United States. It was the first league to openly hire and trade players.