| John Smyth | |
| Fullname: | John Michael Smyth |
| Birth Date: | 28 April 1970 |
| Birth Place: | Dundalk, Ireland |
| Position: | Full back |
| Youthclubs1: | Dundalk |
| Years1: | 1987–1990 |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 1990–1991 |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 1991–1992 |
| Caps3: | 8 |
| Goals3: | 0 |
| Years4: | 1992–1993 |
| Caps4: | 27 |
| Goals4: | 4 |
| Years5: | 1993–1996 |
| Caps5: | 50 |
| Goals5: | 5 |
| Years6: | 1996–???? |
| Caps6: | ? |
| Goals6: | ?[1] |
| Totalcaps: | 85 |
| Totalgoals: | 9 |
John Michael Smyth (born 28 April 1970) is an Irish former professional footballer. He played as a full back and made eight appearances in the Football League for Wigan Athletic.