Petr Bar Biryukov (born 28 February 2002) 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. 293, reached on 16 February 2026.
Bar Biryukov plays mostly on ATP Challenger Tour, where he has won one doubles title at 2025 Manama Challenger, partnering with Alexandr Binda.