The Leadenhall Building

122 Leadenhall Street, also known as the Leadenhall Building, is a 225-metre-tall skyscraper in central London. It opened in July 2014 and was designed by Rogers Stirk Harbour + Partners; it is known informally as The Cheesegrater because of its distinctive wedge shape similar to that of the kitchen utensil with the same name. It is one of a number of tall buildings recently completed or under construction in the City of London financial district, including 20 Fenchurch Street, 22 Bishopsgate, and The Scalpel.

The site is adjacent to the Lloyd's Building, also designed by Rogers, which is the current home of the insurance market Lloyd's of London. Until 2007 the Leadenhall site was occupied by a building owned by British Land and designed by Gollins Melvin Ward Partnership, which was constructed in the 1960s.