Julio Mario Santo Domingo Braga (1958 – March 2009) was a Colombian-American businessman.

[1] Santo Domingo was the first-born of the Colombian businessman Julio Mario Santo Domingo and the Brazilian Edyala Braga, of the same family as Eduardo Braga, former governor of the Brazilian state of Amazonas, and ex-wife of Benjamin Vargas, brother of Getúlio Vargas.

[2] He had a particular regard for Marcel Proust, but he also greatly admired and collected the works of Baudelaire, Rimbaud and Verlaine.

[2] He had huge collections of rock and roll and antique Chinese opium paraphernalia,[5] and was an ardent fan of AS Saint-Étienne, a French soccer team.

Santo Domingo died in New York City from cancer, diagnosed in October 2008.