The 2015 Internationaux de Tennis de Blois was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Blois, France between 15 and 22 June 2015.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Argentina | Máximo González | 95 | 1 | |
 Colombia | Alejandro González | 120 | 2 | |
 Spain | Daniel Muñoz de la Nava | 134 | 3 | |
| Argentina | Horacio Zeballos | 140 | 4 | |
| Gastão Elias | 155 | 5 | ||
| Argentina | Renzo Olivo | 164 | 6 | |
 Brazil | Guilherme Clezar | 168 | 7 | |
 Sweden | Christian Lindell | 184 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Rogério Dutra Silva
Filip Peliwo
Gleb Sakharov Maxime TabatruongThe following players received entry into the singles main draw as a lucky loser:
See main article: 2015 Internationaux de Tennis de BLOIS – Singles.
Mathias Bourgue def. Daniel Muñoz de la Nava 2–6, 6–4, 6–2See main article: 2015 Internationaux de Tennis de BLOIS – Doubles.
Rémi Boutillier / Maxime Teixeira def. Guilherme Clezar / Nicolás Kicker 6–3, 4–6, [10–8]