Mark Chadburn Samuel (born 1963) is a Canadian businessman and former equestrian.
[1] In 1999 Samuel was named to his first Nations' Cup team representing Canada in show jumping.
In all competitions, he rode the Selle Français Darios V.[3] Samuel's family owns the Thoroughbred breeding operation Sam-Son Farm, which has produced Breeders' Cup winners.
[1] Samuel is a former director of the Ontario Equestrian Federation (OEF), the Canadian Equestrian Federation (now known as Equine Canada), co-founder of the Ontario Hunter Jumper Association (OHJA), co-founder, past chair and current committee member of Jump Canada, Chair of the Jump Canada Hall of Fame.
He is the current Group IV Chair (North America) and Bureau member of the International Equestrian Federation (FEI).