John Clinton, Edelman's Canada chief, will lead the 2016 Cannes PR Lions jury.
Clinton, who has an advertising background with Grey and J Walter Thompson, leads the top PR firm's 250-person Canadian operation and heads creative and content for North America.
Clinton will chair a 21-member PR jury for the international awards competition June 18-25.
Edelman and Creative Artists Agency won the top PR award at Cannes, the PR Grand Prix, in 2014. FleishmanHillard worked with TBWA/Chiat/Day to earn the Grand Prix in 2010, although ad agencies have taken the majority of PR Grand Prix awards since PR was singled out for an award at Cannes in 2009.