The 905 Derby is a soccer rivalry between Canadian Premier League clubs, Forge FC and Inter Toronto FC, both based in Southern Ontario. The rivalry gets the "905" nickname from the 905 area code, which encompasses both Hamilton and York Region. Forge and Inter Toronto were the only Ontario-based teams in the inaugural season of the league and remain the two closest in proximity, with less than 65 kilometres (40 mi) separating their home stadiums.

In January 2019, the Canadian Premier League announced that its inaugural match on April 27, 2019, would be between Forge FC and York9 FC at Tim Hortons Field, the first-ever staging of the 905 Derby. The match ended in a 1–1 draw.

On November 21, 2021, Forge hosted York United in the first CPL playoff meeting of the two clubs. Forge defeated York 3–1 to advance to the 2021 Canadian Premier League Final.

As of October 18, 2025^[update]

  Forge wins   Draw   York/Inter Toronto wins

As of October 18, 2025^[update]

Players in bold are still active players with the team.