The 2014 Marburg Open was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Marburg, Germany between 23 and 29 June 2014.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Argentina | Diego Sebastián Schwartzman | 93 | 1 | |
 Brazil | Thomaz Bellucci | 98 | 2 | |
| Andreas Beck | 131 | 3 | ||
| Brazil | João Souza | 134 | 4 | |
| Argentina | Horacio Zeballos | 136 | 5 | |
| Thiemo de Bakker | 143 | 6 | ||
| Gastão Elias | 154 | 7 | ||
 Romania | Marius Copil | 160 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Argentina | Diego Sebastián Schwartzman | Argentina | Horacio Zeballos | 229 | 1 | |
 Canada | Adil Shamasdin |  New Zealand | Artem Sitak | 229 | 2 | |
 Colombia | Nicolás Barrientos | Colombia | Juan Carlos Spir | 246 | 3 | |
 Belarus | Sergey Betov | Belarus | Aliaksandr Bury | 255 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2014 Marburg Open – Singles.
Horacio Zeballos def. Thiemo de Bakker 3 - 6, 6 - 3, 6 - 3[1]See main article: 2014 Marburg Open – Doubles.
Jaroslav Pospíšil / Franko Škugor def. Diego Sebastián Schwartzman / Horacio Zeballos 6 - 4, 6 - 4
