Ramón Fonst Segundo (Havana, 31 July 1883 ; died 9 september 1959) was a Cuban fencer. Fonst won at the 1900 Summer Olympics, a gold medal in the épée. As a result, he became the first Latin American Olympic medaillist. Four years later he won three gold medals, including one for the mixed team.
After his career as a fencer Fonst became President of the Cuban Olympic Committee.