Todd Blackadder (born September 20, 1971) was a prominent and popular New Zealand rugby player in the 1990s. Among his achievements were captaincy of the New Zealand All Blacks, the Crusaders Super 12 team, and the Canterbury provincial team. He now plays professionally in Scotland as the captain of Edinburgh Rugby. He was the first assistant forwards coach of Scotland's head coach Matt Williams, and is now (November 2004) the forwards coach of Edinburgh Rugby, while still playing sometimes. He plays at lock and his nickname is "Toddy".

He is said to have ambitions to coach the All Blacks some day.