The McRib is a barbecue-flavored pork sandwich periodically sold by the international fast food restaurant chain McDonald's. It was first introduced to the McDonald's menu in 1981, following test marketing the year before.

After poor sales, it was removed from the menu in 1985. It was reintroduced in 1989, staying on the menu until 2005 in many countries. Since 2006, it has generally been made available for a short time each year in most markets where it is sold, typically during the fall season, although it is a permanent menu item at McDonald's restaurants in Germany and Luxembourg.

The McRib consists of a restructured boneless pork patty shaped like a miniature rack of ribs, barbecue sauce, onions, and pickles, served as a sandwich on a 5½ inch (14 cm) roll. Meat restructuring was developed by the US Army to deliver low-cost meat to troops in the field. The process was refined by a Natick Army Labs meat scientist, Dr. Roger Mandigo, leading to the McRib patty. It is primarily composed of ground pork shoulder.