| Billy Cupit | |
| Fullname: | William Cupit |
| Birth Date: | 25 January 1908 |
| Birth Place: | Huthwaite, England |
| Years1: | 1930 |
| Clubs1: | Sutton Junction |
| Years2: | 1931–1932 |
| Clubs2: | Luton Town |
| Caps2: | 8 |
| Goals2: | 1 |
| Years3: | 1932–1933 |
| Caps3: | 2 |
| Goals3: | 0 |
| Years4: | 1933 |
William Cupit (25 January 1908 – 1992) was an English professional footballer who played in the Football League for Luton Town and Mansfield Town.[1]