Sir Mark James Todd KNZM CBE (born 1 March 1956) is a New Zealand horseman noted for his accomplishments in the discipline of eventing, voted Rider of the 20th century by the International Federation for Equestrian Sports.

He won gold medals at Los Angeles (1984) and Seoul (1988) Olympics, the Badminton Horse Trials on four occasions,the Burghley Horse Trials five times, and as a member of New Zealand’s Eventing team, he won gold medals at the World Championships in 1990 and 1998 (Rome), plus 20 or more other international events, and numerous other international individual and team titles.