Justino Díaz (born January 29, 1940) is a Puerto Rican operatic bass-baritone. In 1963, Díaz won an annual contest held at the Metropolitan Opera of New York, becoming the first Puerto Rican to obtain such an honor and as a consequence, made his Metropolitan debut in October 1963 in Verdi's Rigoletto as Monterone. Díaz was born in San Juan, Puerto Rico, the capital of the island, but lived and was raised