| Jaroslav Kostelný | |
| Fullname: | Jaroslav Kostelný |
| Height: | 1.870NaN0 |
| Birth Date: | 1985 4, df=y |
| Clubnumber: | 4 |
| Youthclubs1: | Partizán Čierny Balog |
| Years1: | –2009 |
| Clubs1: | Podbrezová |
| Years2: | 2010–2013 |
| Caps2: | 63 |
| Goals2: | 2 |
| Years3: | 2012–2013 |
| Clubs3: | → Opava (loan) |
| Caps3: | 17 |
| Goals3: | 3 |
| Years4: | 2013–2014 |
| Clubs4: | Nitra |
| Caps4: | 14 |
| Goals4: | 1 |
| Years5: | 2014–2015 |
| Clubs5: | Ritzing |
| Caps5: | 25 |
| Goals5: | 0 |
| Years6: | 2015 |
| Clubs6: | Nitra |
| Caps6: | 17 |
| Goals6: | 0 |
| Years7: | 2016– |
| Caps7: | 57 |
| Goals7: | 3 |
| Pcupdate: | 6 June 2018 |
Jaroslav Kostelný (born 19 April 1985) is a Slovak football defender who currently plays for the Fortuna Liga club FO ŽP Šport Podbrezová.