The 2014 Košice Open was a professional tennis tournament played on clay courts. It was the twelfth edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Košice, Slovakia between 9 and 14 June 2014.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Austria | Andreas Haider-Maurer | 104 | 1 | |
 Argentina | Facundo Argüello | 114 | 2 | |
 Romania | Adrian Ungur | 128 | 3 | |
 Bosnia and Herzegovina | Damir Džumhur | 129 | 4 | |
| Austria | Gerald Melzer | 140 | 5 | |
 Slovakia | Andrej Martin | 158 | 6 | |
| Slovakia | Norbert Gombos | 166 | 7 | |
| Wayne Odesnik | 169 | 8 |
The following players received wildcards into the singles main draw:
Marko Daniš Patrik Fabian Dominik Šproch
Robin StaněkThe following players received entry from the qualifying draw:
Frank Dancevic
Blazej Koniusz Michal Pažický Andriej Kapaś| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Poland | Mateusz Kowalczyk |  New Zealand | Artem Sitak | 234 | 1 | |
| Austria | Sebastian Bader | Austria | Gerald Melzer | 433 | 2 | |
| Argentina | Facundo Argüello | Ariel Behar | 461 | 3 | ||
| Poland | Andriej Kapaś | Poland | Błażej Koniusz | 484 | 4 |
The following pairs received wildcards into the doubles main draw:
Marko Daniš / Patrik Fabian Filip Havaj / Juraj Šimčák Michal Pažický / Dominik ŠprochSee main article: 2014 Košice Open – Singles.
Frank Dancevic def. Norbert Gombos, 6–2, 3–6, 6–2See main article: 2014 Košice Open – Doubles.
Facundo Argüello / Ariel Behar def. Andriej Kapaś / Błażej Koniusz, 6–4, 7–6(7–4)