Lewis Evans (1853–1930) was an English businessman and scientific instrument collector. His collection was the nucleus of the History of Science Museum, Oxford. He was the son of Sir John Evans, an archaeologist, and younger brother of the more famous archaeologist Sir Arthur Evans (1851–1941) who excavated the archaeological site Knossos in the island of Crete, Greece. He studied chemistry at University College London and became a businessman. During his career, he rose to the chairman role in the family paper-making firm John Dickinson & Co. Ltd and lived at Russels, a country house near the company's paper mill, close to Watford.