Donald John Smith was a Canadian professional ice hockey player. Smith was one of the earliest professional ice hockey players, playing professionally in the first decade of the 1900s. Smith played in the National Hockey League and its predecessor National Hockey Association for the Montreal Canadiens, Montreal Shamrocks, Montreal Wanderers and Renfrew Creamery Kings.

The Federal Amateur Hockey League (FAHL) was a Canadian men's senior-level ice hockey league that played six seasons, from 1904 to 1909. The league was formed initially to provide a league for teams not accepted by the rival Canadian Amateur Hockey League (CAHL).