Egor Agafonov (born 5 September 2002) is a Russian professional tennis player. He has a career-high ATP singles ranking of No. 465 achieved on 17 March 2025 and a best doubles ranking of No. 238 achieved on 10 February 2025.
Agafonov plays mostly on ATP Challenger Tour, where he has won one doubles title at the 2024 President's Cup, with countryman Ilia Simakin.