The 1905–06 Federal Amateur Hockey League (FAHL) season lasted from December 27, 1905, until February 28, 1906.
With the loss of their top two teams, Ottawa and Wanderers, the quality of the FAHL declined.
The teams were replaced with the Ottawa Victorias and Smiths Falls Seniors clubs.
Otherwise, the season was low scoring, with the notable outstanding debut of goaltender Percy LeSueur of Smiths Falls.
After the season ended, Smiths Falls challenged the Ottawa Senators for the Stanley Cup.