Pedro Joaquín Chamorro Cardenal (23 September 1924 – 10 January 1978) was a Nicaraguan journalist and publisher. He was the editor of "La Prensa", the only significant opposition newspaper to the long rule of the Somoza family. He is a 1977 laureate of the Maria Moors Cabot Prize of Columbia University in New York. He married Violeta Barrios de Chamorro, who later went on to become President of Nicaragua (1990-1996). In 1978, he was shot to death, one of the precipitating events of the overthrow of the Somoza regime the following year.