Byam is both a given name and a surname. Notable people with the name include: Byam Shaw (1872–1919), Indian-born British painter, illustrator, designer and teacher Edward Byam, Governor of the Leeward Islands Lydia Byam, (born 1772), botanical illustrator Sarah Byam, American comics writer Wally Byam (1896–1962), founder of Airstream Inc.
See also Byam Channel, a waterway in northern Canada Byam (1800 ship), slave ship Barrett-Byam, historic house in Chelmsford, Massachusetts