| Jacek Bayer | |
| Birth Date: | 29 December 1964 |
| Birth Place: | Białystok, Poland |
| Position: | Forward |
| Years1: | -1984 |
| Clubs1: | Jagiellonia Białystok |
| Years2: | 1984-1985/86 |
| Clubs2: | Hetman Białystok |
| Years3: | 1985/86-1989 |
| Clubs3: | Jagiellonia Białystok |
| Caps3: | 54+ |
| Goals3: | 20+ |
| Years4: | 1989-1991 |
| Clubs4: | Widzew Łódź |
| Caps4: | 20+ |
| Goals4: | 9+ |
| Years5: | 1991-1992 |
| Clubs5: | Siarka Tarnobrzeg |
| Years6: | 1993-1994 |
| Clubs6: | Jagiellonia Białystok |
| Years7: | 1994-1997 |
| Clubs7: | KP Wasilków |
| Years9: | 1997-1998 |
| Clubs9: | Hetman Białystok |
| Years10: | 1998-1999 |
| Clubs10: | STP Adidas Suwałki |
| Years11: | 1999-2000 |
| Clubs11: | Sparta 1951 Szepietowo |
| Years12: | 2000-2004 |
| Clubs12: | Piast Białystok |
| Nationalyears1: | 1987 |
| Nationalteam1: | Poland |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
Jacek Bayer (born 29 December 1964 in Poland) is a Polish retired footballer.[1]
Bayer was nicknamed "Duży" (Big) because he played with his little brother Dariusz at Jagiellonia, who was "Mały" (Little).[2]
Initially he found it hard to adjust after leaving third division Hetman Białystok for Jagiellonia but regained his confidence by scoring four goals in three friendlies.[2]
While still playing in the second division in 1987, Bayer was called up to the national team for a Euro qualifier against Cyprus. However, he failed to seize his chance, hitting the crossbar in the 0–0 draw, and was the last player from the second division to feature internationally for Poland.[3]