Bernardo Segura Rivera (born February 11, 1970 in San Mateo Atenco) is a Mexicanrace walker. He is a former holder of the 20,000m World Record for Race Walking with a time of 1:17:25.6.
Segura is an athlete with poorly perfected technique which earns him frequent notices and disqualifications during competition. He was disqualified in the World Championships in 1993 and 1995. In the 2000 Olympic Games, Segura finished first the 20km walk. However, he was disqualified by the judges while he was being congratulated by then president Ernesto Zedillo.