2013 Banca dell'Adriatico Tennis Cup – Singles

Gianluca Naso was the defending champion but lost to David Guez in the first round. Andrej Martin defeated top-seeded João Sousa 6–4, 6–3 in the final.

Seeds
• # João Sousa (final)

• # 🇺🇸 Wayne Odesnik (first round)

• # 🇦🇹 Andreas Haider-Maurer (quarterfinals)

• # 🇷🇸 Dušan Lajović (second round)

• # 🇸🇰 Andrej Martin (champion)

• # 🇫🇷 David Guez (second round)

• # Jorge Aguilar (second round)

• # 🇷🇸 Boris Pašanski (first round)