| Ondrej Debnár | |
| Fullname: | Ondrej Debnár |
| Birth Date: | 18 June 1972 |
| Clubnumber: | 3 |
| Youthclubs1: | OFK Očová |
| Youthclubs2: | MFK Detva |
| Youthclubs3: | Banská Bystrica B |
| Clubs1: | MFK Detva |
| Years2: | 1993–2002 |
| Caps2: | 168 |
| Goals2: | 5 |
| Years3: | 2002–2003 |
| Caps3: | 5 |
| Goals3: | 0 |
| Years4: | 2003–2004 |
| Caps4: | 20 |
| Goals4: | 1 |
| Years5: | 2004 |
| Caps5: | 11 |
| Goals5: | 2 |
| Years6: | 2005–2007 |
| Caps6: | 53 |
| Goals6: | 3 |
| Years7: | 2007–2009 |
| Caps7: | 49 |
| Goals7: | 2 |
| Years8: | 2009– |
| Nationalyears1: | 2002–2003 |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 0 |
| Pcupdate: | 1 April 2012 |
| Ntupdate: | 1 April 2012 |
Ondrej Debnár (born 18 June 1973 in Zvolen) is a Slovak professional footballer who currently plays for MFK Lokomotíva Zvolen. He was a captain of FK Dukla.
Debnár spent one season in the Turkish Super Lig with Elazığspor.[1]
Debnár has made four appearances for the full Slovakia national football team.