| Date: | July 13–19 |
| Edition: | 40th |
| Category: | World Tour 250 |
| Prize Money: | $488,225 |
| Draw: | 32S / 16D |
| Surface: | Grass / outdoor |
| Location: | Newport, Rhode Island, United States |
| Venue: | International Tennis Hall of Fame |
| Champs: |  Rajeev Ram[1] |
| Champd: |  Jonathan Marray /  Aisam-ul-Haq Qureshi[2] |
The 2015 Hall of Fame Tennis Championships was a men's tennis tournament played on outdoor grass courts. It was the 40th edition of the Hall of Fame Tennis Championships, and part of the ATP World Tour 250 series of the 2015 ATP World Tour. It took place at the International Tennis Hall of Fame in Newport, Rhode Island, United States, from July 13 through July 19, 2015.
Former world No. 8 and two-time Grand Slam finalist Mark Philippoussis contested his first match on the ATP World Tour in nine years after receiving a wild card into qualifying. He was 38 years of age.[3]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| John Isner | 17 | 1 | ||
| Ivo Karlović | 25 | 2 | ||
 Australia | Bernard Tomic | 26 | 3 | |
| Jack Sock | 31 | 4 | ||
 France | Adrian Mannarino | 34 | 5 | |
| Sam Querrey | 36 | 6 | ||
| Steve Johnson | 52 | 7 | ||
| Tim Smyczek | 77 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
James Duckworth →replaced by Illya Marchenko Sam Groth →replaced by Yūichi Sugita Nicolas Mahut →replaced by Niels Desein
Go Soeda →replaced by Édouard Roger-Vasselin Donald Young →replaced by Ryan Harrison| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Colombia | Robert Farah |  Mexico | Santiago González | 86 | 1 | |
| Austin Krajicek | Rajeev Ram | 96 | 2 | |||
| United Kingdom | Jonathan Marray | Pakistan | Aisam-ul-Haq Qureshi | 121 | 3 | |
| Eric Butorac | United Kingdom | Colin Fleming | 123 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2015 Hall of Fame Tennis Championships – Singles.
Rajeev Ram defeated Ivo Karlović, 7–6(7–5), 5–7, 7–6(7–2)See main article: 2015 Hall of Fame Tennis Championships – Doubles.
Jonathan Marray / Aisam-ul-Haq Qureshi defeated Nicholas Monroe / Mate Pavić, 4–6, 6–3, [10–8]
