Petr Bar Biryukov
Petr Bar Biryukov is a Russian professional tennis player. He has a career-high ATP singles ranking of No. 267 achieved on 27 October 2025 and a best doubles ranking of No. 336 achieved on 22 December 2025.
Bar Biryukov plays mostly on ATP Challenger Tour, where he has won one doubles title at 2025 Manama Challenger, partnering with Alexandr Binda.
ATP Challenger Tour finals
Doubles: 2 (1 title, 1 runner-up)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | [2025 International Challenger Zhangjiagang – Doubles|] | Zhangjiagang Challenger, China | Challenger | Hard |  |