2016 Challenger ATP Cachantún Cup – Singles

Facundo Bagnis was the defending champion.

Facundo Bagnis defended his title by repeating as champion, defeating Rogério Dutra Silva 6–7(3–7), 6–4, 6–3 in the final.

Seeds
• # 🇦🇷 Facundo Bagnis (champion)

• # 🇪🇸 Roberto Carballés Baena (second round)

• # 🇧🇷 Rogério Dutra Silva (final)

• # 🇦🇷 Máximo González (second round)

• # 🇦🇷 Carlos Berlocq (withdrew)

• # 🇦🇷 Facundo Argüello (second round)

• # 🇦🇷 Nicolás Kicker (first round)

• # 🇧🇷 Guilherme Clezar (quarterfinals)