He joins from Wieden & Kennedy Amsterdam, where he was the creative director on its flagship Nike account.
Following the appointment, Gerry Moira, the Euro RSCG London director of creativity, will give up day-to-day control of the creative department, and take on the new role of creative chairman. But Moira will remain lead creative on a number of the agency's briefs, including EDF Energy, Peugeot, and global projects on Reckitt Benckiser.
Mark Cadman, the London chief executive, said: "Mark has the combination of outstanding creative skills and a curious and stimulating mind."
Hunter added: "I have spent all of my career at independent creative agencies, so this is a big shift for me. I am excited by the opportunity at Euro RSCG London; it is an agency moving in the right direction and hiring the right people."
Hunter started his career at the Toronto-based agency Harrod & Mirlin. He joined Bartle Bogle Hegarty in 1999 and won a D&AD black Pencil in 2001 for the Levi's "twist" ad he created with his then partner, Tony McTeer.
- Comment, page 44.