| Date: | 5–12 February |
| Edition: | 2nd |
| Category: | World Tour 250 series |
| Prize Money: | €482,060 |
| Draw: | 28S / 16D |
| Surface: | Hard / indoor |
| Location: | Sofia, Bulgaria |
| Venue: | Arena Armeec |
| Champs: | Grigor Dimitrov[1] |
| Champd: |  Viktor Troicki / Nenad Zimonjić[2] |
| Main Name: | ATP Sofia Open Sofia Open |
| After Name: | Diema Xtra Sofia Open |
The 2017 Sofia Open (also known as 2017 Garanti Koza Sofia Open for sponsorship reasons) was a men's tennis tournament played on indoor hard courts. It was the second edition of the Sofia Open as part of the ATP World Tour 250 series of the 2017 ATP World Tour. It took place at the Arena Armeec in Sofia, Bulgaria, from 5 February until 12 February 2017. Third-seeded Grigor Dimitrov won the singles title.[3]
See main article: article and 2017 Garanti Koza Sofia Open – Singles.
David Goffin, 7–5, 6–4See main article: article and 2017 Garanti Koza Sofia Open – Doubles.
Viktor Troicki / Nenad Zimonjić defeated 
Mikhail Elgin / Andrey Kuznetsov, 6–4, 6–4| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q2 | width=85 | Q1 |
| Singles | 250 | 150 | 90 | 45 | 20 | 0 | 12 | 6 | 0 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 0 |
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q2 | width=85 | Q1 |
| Singles | €85,945 | €45,265 | €24,520 | €13,970 | €8,230 | €4,875 | €2,195 | €1,100 | ||
| Doubles | €26,110 | €13,730 | €7,440 | €4,260 | €2,490 | |||||
| Doubles prize money per team | ||||||||||
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 Austria | Dominic Thiem | 8 | 1 | ||
| Belgium | David Goffin | 11 | 2 | ||
| Grigor Dimitrov | 13 | 3 | |||
 Spain | Roberto Bautista Agut | 16 | 4 | ||
 Luxembourg | Gilles Müller | 28 | 5 | ||
 Cyprus | |||||
 Slovakia | Martin Kližan | 36 | 8 | ||
| Serbia | Viktor Troicki | 37 | 9 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Nicolás Almagro →replaced by Marco Chiudinelli Marcos Baghdatis →replaced by Teymuraz Gabashvili
John Millman →replaced by 
Radu Albot| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Jean-Julien Rojer |  Romania | Horia Tecău | 45 | 1 | ||
| Mate Pavić | Austria | Alexander Peya | 66 | 2 | ||
 United Kingdom | Dominic Inglot | Romania | Florin Mergea | 69 | 3 | |
 Poland | Marcin Matkowski |  Pakistan | Aisam-ul-Haq Qureshi | 98 | 4 |
The following pairs received wildcards into the doubles main draw:
