2013 Campeonato Internacional de Tenis de Santos – Singles

Ivo Minář was the defending champion but decided not to participate. Gastão Elias won the title by defeating Rogério Dutra da Silva 4–6, 6–2, 6–0 in the final.

Seeds
• # 🇧🇷 Rogério Dutra da Silva (final)

• # 🇧🇷 João Souza (quarterfinals)

• # 🇮🇹 Matteo Viola (first round)

• # Gastão Elias (champion)

• # Antonio Veić (quarterfinals)

• # Paul Capdeville (second round)

• # 🇹🇳 Malek Jaziri (quarterfinals)

• # 🇦🇷 Guido Andreozzi (semifinals)