2015 Campeonato Internacional de Tenis de Santos – Singles

Máximo González was the defending champion, but he lost in the second round.

Blaž Rola won the title, defeating Germain Gigounon in the final, 6–3, 3–6, 6–3.

Seeds
• # 🇦🇷 Máximo González (second round)

• # Blaž Rola (champion)

• # 🇧🇷 André Ghem (quarterfinals)

• # 🇦🇷 Guido Pella (semifinals)

• # 🇺🇸 Chase Buchanan (first round)

• # 🇧🇷 Guilherme Clezar (first round, retired)

• # Nicolás Jarry (first round)

• # 🇦🇷 Guido Andreozzi (first round)