1915–16 Ottawa Senators season

The 1915–16 Ottawa Senators season was the Ottawa Hockey Club's 31st season of play. After winning the NHA championship in 1915, the Senators failed to defend the championship, which was won by the Montreal Canadiens.

Team Business
Frank Nighbor, who had played for Vancouver in the Stanley Cup signed with Ottawa, starting a long-time association.

Highlights
On February 23, 1916, Gordon Roberts of the Wanderers drew a match penalty for cutting Ottawa's Frank Nighbor in a game in Montreal. On the next visit of the Wanderers to Ottawa, Roberts was pelted with bottles from the Ottawa fans.