| Billy McGregor | |
| Fullname: | William Francis McGregor |
| Birth Date: | 20 November 1876 |
| Birth Place: | Williamstown, Victoria |
| Death Place: | Sunbury, Victoria |
| Originalteam: | Port Melbourne |
| Statsend: | 1900 |
| Years1: | 1899–1900 |
| Games Goals1: | 28 (2) |
Billy McGregor (20 November 1876 – 9 August 1919) was an Australian rules footballer who played with St Kilda in the Victorian Football League (VFL).[1]