Luis Heberto Fonseca (born June 3, 1977) is a Venezuelan long-distance runner, who twice represented Venezuela in the men's marathon race at the Summer Olympics: in 2004 and 2008. He set his personal best in the men's marathon (2:11:49) on April 15, 2002 in the Boston Marathon.
Fonseca was born on June 3, 1977, in Los Hornos, Táchira, Venezuela.