2013 Tennis Napoli Cup – Singles

Andrey Kuznetsov was the defending champion but chose to compete at the 2013 Portugal Open. Potito Starace was leading Alessandro Giannessi 6–2, 2–0 in the final before Giannessi retired.

Seeds
• # 🇸🇮 Blaž Kavčič (second round)

• # 🇫🇷 Adrian Mannarino (quarterfinals)

• # 🇫🇷 Marc Gicquel (second round)

• # 🇮🇹 Filippo Volandri (semifinals)

• # 🇫🇷 Jonathan Dasnières de Veigy (quarterfinals)

• # 🇩🇪 Julian Reister (first round)

• # 🇷🇸 Dušan Lajović (quarterfinals)

• # 🇩🇪 Bastian Knittel (second round)