| Billy Harper | |
| Fullname: | William E. Harper |
| Birth Date: | 1 December 1877 |
| Birth Place: | Nechells, England |
| Years1: | 1899–1900 |
| Clubs1: | Smethwick Wesleyan Rovers |
| Years2: | 1901–1903 |
| Caps2: | 8 |
| Goals2: | 1 |
| Years3: | 1903–1904 |
| Clubs3: | Leicester Fosse |
| Caps3: | 4 |
| Goals3: | 0 |
| Years4: | 1904 |
| Clubs4: | Stourbridge |
| Totalcaps: | 12 |
| Totalgoals: | 1 |
William E. Harper (1 December 1877–1947) was an English footballer who played in the Football League for Leicester Fosse and West Bromwich Albion.[1]