| Denis Horník | |
| Fullname: | Denis Horník |
| Birth Date: | 13 July 1997 |
| Birth Place: | Galanta, Slovakia |
| Currentclub: | Petržalka |
| Clubnumber: | 5 |
| Position: | Defender |
| Years1: | 2016–2018 |
| Clubs1: | Spartak Trnava |
| Caps1: | 18 |
| Goals1: | 0 |
| Years2: | 2017–2018 |
| Clubs2: | → ViOn Zlaté Moravce (loan) |
| Caps2: | 19 |
| Goals2: | 0 |
| Years3: | 2019– |
| Clubs3: | Petržalka |
| Caps3: | 29 |
| Goals3: | 4 |
| Nationalyears1: | 2014–2015 |
| Nationalcaps1: | 19 |
| Nationalgoals1: | 2 |
| Nationalyears2: | 2015–2016 |
| Nationalcaps2: | 11 |
| Nationalgoals2: | 1 |
| Club-Update: | 7 January 2020 |
Denis Horník (born 13 July 1997) is a Slovak footballer who plays for Petržalka as a defender.
As youth player of its academy, Horník signed a three-and-a-half-year professional contract with Spartak Trnava in February 2016.[1] He made his professional debut for Trnava against Zemplín Michalovce on 27 February 2016.[2]