2021 Nur-Sultan Challenger II – Doubles

This was the second edition of the tournament in the 2021 tennis season. Denys Molchanov and Aleksandr Nedovyesov were the defending champions but only Nedovyesov chose to defend his title, partnering Viktor Troicki. Nedovyesov lost in the semifinals to Nathan Pasha and Max Schnur.

Nathaniel Lammons and Jackson Withrow won the title after defeating Pasha and Schnur 6–4, 6–2 in the final.

Seeds
• # 🇺🇸 Nathaniel Lammons / 🇺🇸 Jackson Withrow (champions)

• # 🇺🇸 Nathan Pasha / 🇺🇸 Max Schnur (final)

• # 🇰🇿 Aleksandr Nedovyesov / 🇷🇸 Viktor Troicki (semifinals)

• # 🇨🇦 Peter Polansky / 🇨🇦 Brayden Schnur (semifinals, retired)