Florin Mergea Doubles finals: 29 (12–17) Doubles finals: 29 (12–17)

| Outcome | Date_ | Tournament | Surface | Partner | Opponents_in_the_final | Score |
|---|---|---|---|---|---|---|
| Runner-up | 3 March 2013 | Cherbourg , France | Hard | Philipp Marx | Sanchai Ratiwatana Sonchat Ratiwatana | 5–7, 4–6 |
| Runner-up | 24 March 2013 | Rimouski , Canada | Hard | Philipp Marx | Samuel Groth John-Patrick Smith | 6–7 (5–7) , 6–7 (7–9) |
| Runner-up | 31 March 2013 | Le Gosier , Guadeloupe | Hard | Philipp Marx | Dudi Sela Jimmy Wang | 1–6, 2–6 |
| Runner-up | 11 May 2013 | Rome , Italy | Clay | Philipp Marx | Andre Begemann Martin Emmrich | 6–7 (4–7) , 3–6 |
| Runner-up | 10 August 2013 | City of San Marino , San Marino | Clay | Daniele Bracciali | Nicholas Monroe Simon Stadler | 2–6, 4–6 |