John Barrie Smythe (born August 31, 1989) is a Canadian field hockey player who plays as a defender or midfielder for the Vancouver Hawks and the Canadian national team.

[2] His older brother Iain Smythe also is a Canadian international field hockey player.

[3] Smythe represented Canada at the 2018 World Cup,[4] where he played all four games.

In June 2019, he was selected in the Canada squad for the 2019 Pan American Games.

[6] In June 2021, Smythe was named to Canada's 2020 Summer Olympics team.