Loin Pork Chop Courtesy in the Countrywide Pork Board, Des Moines, Iowa Loin chops are Slice from your upper part of the pig, unsurprisingly referred to as the loin space. Also known as the porterhouse chop or Centre loin chop, this distinct Slash emanates from towards the center-rear in the loin. Some cuts will even contain a piece of tenderloin �