Iberico ham is a variety of Jamón, a type of cured ham produced in Spain.
Pork products made from Black Iberian breed pigs receive the Ibérico denomination. As such, jamón ibérico is the dry-cured ham produced from the livestock of said breeds.
Jamón Ibérico, especially the one labelled as "de bellota", has a smooth texture and rich, savoury taste.
Pata Negra, meaning literally blackleg, Pata Negra is a commercial label for jamón Ibérico. In colloquial Spanish and popular culture, it is used as a superlative or a synonym of the best.
Ibérico encompasses some of the most expensive ham produced in the world, and its fatty marbled texture has made it very popular as a delicacy.