Kokoro Isomura (born 22 January 2003) is a Japanese tennis player.
Isomura has a career high ATP singles ranking of No. 424 achieved on 8 September 2025 and a career high ATP doubles ranking of No. 215 achieved on 24 November 2025.
Isomura has won one ATP Challenger doubles title at the 2025 Nonthaburi Challenger.