2013 Knoxville Challenger – Doubles

Alex Kuznetsov and Mischa Zverev were the defending champions, but Zverev chose not to compete. Kuznetsov partnered with Denys Molchanov but lost to eventual champion Samuel Groth and John-Patrick Smith in the semifinals, who also defeated Carsten Ball and Peter Polansky in the final.

Seeds
• # 🇦🇺 Samuel Groth / 🇦🇺 John-Patrick Smith (champions)

• # 🇺🇸 Austin Krajicek / 🇺🇸 Tennys Sandgren (semifinals)

• # Rik de Voest / 🇺🇸 Rajeev Ram (quarterfinals)

• # 🇮🇪 James Cluskey / 🇦🇹 Maximilian Neuchrist (quarterfinals)