The Clattern Bridge is a bridge over the Hogsmill River in Kingston upon Thames. It was built around 1175 and is thus one of the oldest intact bridges in England. It replaced an older Saxon bridge which was known as the Clatrung Bridge. Its various names, such as the Clateryngbrugge, are thought to derive from the clattering of horses' hooves as they crossed the bridge. The bridge still carries a full load of modern vehicle traffic.