| Doubles | |
|---|---|
| 2018 Città di Caltanissetta | |
| Champions |  Federico Gaio Andrea Pellegrino |
| Runners-up |  Blaž Rola  Jiří Veselý |
| Final score | 7–6(7–4), 7–6(7–5) |
James Cerretani and Max Schnur were the defending champions but chose not to defend their title.
Federico Gaio and Andrea Pellegrino won the title after defeating Blaž Rola and Jiří Veselý 7–6(7–4), 7–6(7–5) in the final.
Marcelo Arévalo / 
Miguel Ángel Reyes-Varela (quarterfinals)
Guido Andreozzi / 
Ariel Behar (first round)
Aliaksandr Bury / 
Peng Hsien-yin (quarterfinals) Roman Jebavý / Zdeněk Kolář (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Arévalo MÁ Reyes-Varela | 6 | 6 | ||||||||||||||||||||||||
 A Balázs A Motti | 3 | 3 | 1 | M Arévalo MÁ Reyes-Varela | 3 | 6 | [5] | ||||||||||||||||||||
 J Munar  C Ruud | 4 | 2 | M Cuevas P Cuevas | 6 | 3 | [10] | |||||||||||||||||||||
| M Cuevas P Cuevas | 6 | 6 | M Cuevas P Cuevas | 2 | 64 | ||||||||||||||||||||||
| 4 | R Jebavý Z Kolář | 4 | 2 | WC | F Gaio A Pellegrino | 6 | 77 | ||||||||||||||||||||
| WC | F Gaio A Pellegrino | 6 | 6 | WC | F Gaio A Pellegrino | 4 | 78 | [10] | |||||||||||||||||||
| PR |  N Barrientos  V Estrella Burgos | 4 | 4 |  T Bednarek  V Uzhylovskyi | 6 | 66 | [3] | ||||||||||||||||||||
| T Bednarek Volodymyr Uzhylovskyi | 6 | 6 | WC | F Gaio A Pellegrino | 77 | 77 | |||||||||||||||||||||
| B Rola J Veselý | 6 | 3 | [10] | B Rola J Veselý | 64 | 65 | |||||||||||||||||||||
 R Gonzales  H Reese | 3 | 6 | [2] | B Rola J Veselý | 6 | 3 | [10] | ||||||||||||||||||||
| WC | J Ocleppo A Vavassori | 4 | 4 | 3 | A Bury H-y Peng | 0 | 6 | [3] | |||||||||||||||||||
| 3 | A Bury H-y Peng | 6 | 6 | B Rola J Veselý | 6 | 1 | [10] | ||||||||||||||||||||
| WC | D Bracciali L Vanni | 5 | 6 | [10] |  S Galdós N Pasha | 4 | 6 | [6] | |||||||||||||||||||
 D Novak T-S Weissborn | 7 | 3 | [5] | WC | D Bracciali L Vanni | 3 | 6 | [7] | |||||||||||||||||||
| S Galdós N Pasha | 63 | 6 | [10] | S Galdós N Pasha | 6 | 3 | [10] | ||||||||||||||||||||
| 2 | G Andreozzi A Behar | 77 | 4 | [5] | |||||||||||||||||||||||
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