Karri McMahon (born 27 February 1992) is an Australian field hockey player for the Hockeyroos who plays as a defender.

Once in Perth with the national team, McMahon has been drafted to YMCC, Fremantle HC, Suburban Lions and is now with Northcoast Raiders.

In 2011, McMahon was a member of the Australian Hockey League team the Southern Suns that won the national championship for the second time ever, 18 years after their first title.

[2] McMahon was a member of the Australia team that won a silver medal at the 2015 Rabobank Hockey World Cup in The Hague.

McMahon earned a silver medal at 3 consecutive Champions Trophy tournaments in Mendoza, London and Changzhou.