| Ján Kozák | |
| Fullname: | Ján Kozák |
| Height: | 1.83m |
| Birth Date: | 17 April 1954 |
| Birth Place: | Matejovce nad Hornádom, Czechoslovakia |
| Position: | Midfielder |
| Youthclubs1: | Spišská Nová Ves |
| Clubs1: | Spišská Nová Ves |
| Years2: | 1975–1980 |
| Caps2: | 149 |
| Goals2: | 34 |
| Years3: | 1980–1982 |
| Clubs3: | Dukla Prague |
| Caps3: | 48 |
| Goals3: | 13 |
| Years4: | 1982–1986 |
| Caps4: | 57 |
| Goals4: | 10 |
| Years5: | 1986–1987 |
| Clubs5: | Seraing |
| Caps5: | 10 |
| Goals5: | 1 |
| Years6: | 1987–1988 |
| Clubs6: | Bourges |
| Caps6: | 33 |
| Goals6: | 8 |
| Years7: | 1988–1990 |
| Clubs7: | Lokomotíva Košice |
| Nationalyears1: | 1976–1984 |
| Nationalteam1: | Czechoslovakia |
| Nationalcaps1: | 55 |
| Nationalgoals1: | 9 |
| Manageryears1: | 1993–1995 |
| Managerclubs1: | Lokomotíva Košice |
| Manageryears2: | 1995–1997 |
| Managerclubs2: | 1. FC Košice |
| Manageryears3: | 1998 |
| Managerclubs3: | 1. FC Košice |
| Manageryears4: | 2002–2003 |
| Managerclubs4: | Michalovce |
| Manageryears5: | 2004–2005 |
| Managerclubs5: | Ličartovce |
| Manageryears6: | 2005–2009 |
| Managerclubs6: | MFK Košice |
| Manageryears7: | 2012–2013 |
| Managerclubs7: | MFK Košice |
| Manageryears8: | 2013–2018 |
| Managerclubs8: | Slovakia |
Ján Kozák (born 17 April 1954) is a Slovak football manager and former player. Most recently, he managed Slovak national team. As the manager of Slovakia, his team qualified for the 2016 UEFA Euro, thus becoming Slovakia's first time to appear in the tournament.
In 1981, Kozák became footballer of the year in Czechoslovakia. He played 254 matches in Czechoslovak First League and scored 57 goals. He also participated in UEFA Euro 1980 and the 1982 FIFA World Cup. His son Ján Kozák is also a former footballer, coach and one of the pioneers of footgolf in Slovakia.
Kozák's son, Ján Kozák, is also former national player of Slovakia and most recently head coach of FC VSS Košice; his grandson, Filip Lesniak, is also footballer and plays for Georgian club FC Telavi.
Dukla Prague
Winners: 1981–82
Winners: 1981
Lokomotíva Košice
Winners (2x): 1977, 1979
Czechoslovakia
3rd place
Group stage
Individual
1981
1.FC Košice
Group Stage 1997–98
MFK Košice
Winners: 2005–06 (Promoted)
Winners: 2009
Slovakia
Round of 16
Individual
Winner (5): 2013, 2014, 2015, 2016, 2017
Jan Kozak resigned after a loss against the Czech Republic in Trnava (Slovakia). He blamed 7 players in his squad, for his decision to resign.