The Walthamstow Pumphouse Museum is a British museum based in Walthamstow, London. The museum focuses on the pioneering achievements in road, rail, air and sea transport in Waltham Forest and the surrounding area, including the Lea Valley, from the early 19th century. The aim of the museum is to showcase how the coming of industrial development affected the Waltham Forest, the surrounding area and its people. The museum contains many areas displaying various artifacts, including Routemaster buses, a pair of Marshall C class steam engines, and various fire fighting vehicles.