Frank Sellick Calder was a British-born Canadian ice hockey executive, journalist, and athlete.

The National Hockey League commissioner is the highest-ranking executive officer in the National Hockey League (NHL). The position was created in 1993; Gary Bettman was named the first commissioner and remains the only person to fill the position to date. Among other duties, the commissioner leads collective bargaining negotiations on behalf of the league and appoints officials for all NHL games.