| Jack McKay | |
| Birth Date: | 16 January 1886 |
| Birth Place: | Franklinville, New York, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1903–1906 |
| Player Team2: | Westminster (PA) |
| Coach Sport1: | Football |
| Coach Years2: | 1907–1908 |
| Coach Team2: | Butler |
| Coach Years3: | 1910 |
| Coach Team3: | Butler |
| Coach Sport4: | Basketball |
| Coach Years5: | 1907–1909 |
| Coach Team5: | Butler |
| Coach Sport6: | Baseball |
| Coach Years7: | 1909 |
| Coach Team7: | Butler |
| Overall Record: | 10–6–4 (football) 9–6 (basketball) 1–6 (baseball) |
John G. McKay (born January 16, 1886) was an American football, basketball, and baseball coach.[1] He served as the head football and basketball coach at Butler University in Indianapolis, Indiana.[2]