William John Bartlett (13 April 1878 – 6 August 1939) was an English professional footballer, who played for Sheffield Wednesday, Huddersfield Town and Linfield.
Bartlett stayed in Belfast after his football career ended, where he worked as a member of the Belfast Corporation Surveyor's Department. After a short illness, he died at Royal Victoria Hospital in Belfast, age 61. He was survived by his wife, Margaret Bartlett. His funeral was held at Belfast City Cemetery, where a large attendance came to pay their respects, including representatives of Linfield F.C., the Irish Football Association, Irish Football League, and the Belfast Corporation.