| Billy Sellars | |
| Fullname: | William Sellars |
| Birth Date: | 7 October 1907 |
| Birth Place: | Hyde Park, England |
| Death Date: | 1987 (aged 79 or 80) |
| Position: | Winger |
| Years1: | 1927–1932 |
| Caps1: | 165 |
| Goals1: | 36 |
| Years2: | 1932–1933 |
| Caps2: | 39 |
| Goals2: | 11 |
| Years3: | 1933–1934 |
| Caps3: | 19 |
| Goals3: | 2 |
| Years4: | 1934–1935 |
| Caps4: | 2 |
| Goals4: | 1 |
| Years5: | 1935–1936 |
| Caps5: | 33 |
| Goals5: | 2 |
William Sellars (7 October 1907 – 1987) was an English professional footballer who played as a winger.