2021 Moselle Open – Doubles

Robert Lindstedt and Jan-Lennard Struff were the reigning champions from when the tournament was last held in 2019, but chose not to participate this year.

Hubert Hurkacz and Jan Zieliński won the title, defeating Hugo Nys and Arthur Rinderknech in the final, 7–5, 6–3.

Seeds
• # 🇫🇮 Henri Kontinen / 🇯🇵 Ben McLachlan (semifinals)

• # 🇧🇦 Tomislav Brkić / 🇷🇸 Nikola Ćaćić (semifinals)

• # 🇦🇹 Oliver Marach / 🇦🇹 Philipp Oswald (quarterfinals)

• # 🇦🇺 Luke Saville / 🇦🇺 John-Patrick Smith (first round)