Gergana Topalova (Bulgarian: Гергана Топалова; born 22 February 2000) is a Bulgarian tennis player. She has career-high WTA rankings of 210 in singles and 388 in doubles. Topalova is the current No. 2 Bulgarian female player.
She has won six singles titles and four doubles titles on the ITF Circuit. On the ITF Junior Circuit, she had a career-high combined ranking of 31, achieved on 22 January 2018.
In 2019, Topalova made her Fed Cup debut for Bulgaria.
On 23 November 2022, she was confirmed as a participant at the 2023 United Cup as part of the Bulgarian team. On New Year’s Eve 2022, she made her debut in mixed doubles match alongside Adrian Andreev which they lost to the top-seeded team of Maria Sakkari and Stefanos Tsitsipas. The following day, she made her WTA Tour debut and lost her maiden singles match to Elise Mertens in three sets.
Topalova participated in the qualifying draw of the 2023 Hobart International. She entered as an alternate and lost in the first round of qualifying to Diane Parry.
Topalova reached the final round of the qualifying competition at the 2024 Wimbledon Championships on her Grand Slam tournament qualifying debut.
She made her main-draw debut at the 2024 Budapest Grand Prix as a qualifier, losing in the first round to fourth seed Sara Sorribes Tormo in three sets.