As of 2014, the world record for largest pig belongs to Big Bill, who weighed in at 2,552 pounds in 1933. Big Bill was 9 feet long and 5 feet high, and he was so large that there was a time when his stomach would reach the ground.
Big Bill resided in Jackson, Tenn., until a broken leg meant he had to be put down before his exhibition at the Chicago World Fair.
According to National Geographic, the giant forest hog is considered to be the largest species of pig, reaching up to 600 pounds. Occasionally, individual domesticated pigs, such as Big Bill, grow larger.