Pedro Joaquín Chamorro Cardenal (23 September 1924 Granada, Nicaragua – 10 January 1978 Managua) 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 the University of Columbia (New York). He married Violeta Barrios de Chamorro who later went on to become President of Nicaragua (1990-1996).