| Billie Jean King Cup | 04/11 10:05 | 2 | Tara Wurth v Gergana Topalova | 4-6,6-2,3-6 | |
| Billie Jean King Cup | 04/11 10:00 | - | [146] Tara Wurth v Gergana Topalova [308] | 4-6,6-2,3-6 | |
| ITF W40 Split | 04/04 07:50 | 25 | [213] Petra Marcinko v Gergana Topalova [306] | 6-1,6-3 | |
| ITF W40 Split | 04/03 07:55 | 54 | [323] Gergana Topalova v Lucia Cortez Llorca [460] | 6-7,6-3,6-4 | |
| ITF W25 Palmanova | 03/20 10:30 | 62 | Gergana Topalova v Oana Gavrila | 3-6,3-6 | |
| ITF W25 Palmanova | 03/18 10:00 | 62 | Gergana Topalova v Matilde Jorge | 6-4,6-0 | |
| ITF W25 Palmanova | 03/18 09:25 | 28 | [317] Gergana Topalova v Rosa Vicens Mas [214] | 3-6,2-6 | |
| ITF W25 Palmanova | 03/17 09:30 | 27 | [178] Tara Wurth v Gergana Topalova [317] | 4-6,3-6 | |
| ITF W25 Palmanova | 03/16 10:15 | 26 | [317] Gergana Topalova v Sada Nahimana [267] | 6-4,6-2 | |
| ITF W25 Palmanova | 03/15 13:50 | 25 | Gergana Topalova v Anastasiya K Soboleva | 7-6,6-7,6-1 | |
| ITF W60 Trnava | 03/07 08:55 | 54 | [352] Smitkova, Tereza v Gergana Topalova [317] | 6-7,6-3,6-4 | |
| ITF W60 Trnava | 03/06 16:40 | 54 | [469] Yana Morderger v Gergana Topalova [317] | 3-6,2-6 | |
| ITF W25 Joue Les Tours | 03/01 14:05 | 25 | [286] Pemra Ozgen v Gergana Topalova [316] | 6-2,6-4 | |
| ITF W40 Macon | 02/22 12:35 | 25 | [321] Gergana Topalova v Jessica Pieri [493] | 1-6,1-6 | |
| ITF W40 Macon | 02/20 12:50 | 54 | [321] Gergana Topalova v Daniela Seguel [446] | 5-7,6-1,6-0 | |
| ITF W40 Macon | 02/19 12:00 | 54 | Gergana Topalova v Marine Szostak | 3-6,6-0,6-2 | |
| ITF W25 Antalya | 02/02 08:40 | 26 | Gergana Topalova v Alba Rey Garcia | 6-7,5-7 | |
| ITF W25 Antalya | 02/01 06:55 | 25 | Gergana Topalova v Polina Leykina | 6-1,6-2 | |
| WTA - Hobart | 01/07 00:00 | 14 | [324] Gergana Topalova v Diane Parry [111] | 0-6,3-6 | |
| United Cup Women | 01/01 02:00 | - | [29] Elise Mertens v Gergana Topalova [323] | 6-4,3-6,6-0 | |
| ITF W100 Dubai | 12/05 06:00 | 54 | [326] Gergana Topalova v Maria Timofeeva [331] | 3-6,3-6 | |
| ITF W100 Dubai | 12/04 06:00 | 54 | Gergana Topalova v Humera Baharmus | 6-3,6-3 | |
| ITF W25 Heraklion | 11/22 07:00 | 25 | [321] Gergana Topalova v Martina Colmegna [417] | Retired | |
| ITF W25 Heraklion | 11/16 07:00 | 25 | [330] Dea Herdzelas v Gergana Topalova [315] | 6-4,3-6,6-2 | |
| ITF W25 Jerusalem | 11/03 08:00 | 26 | [374] Anna Brogan v Gergana Topalova [309] | 6-7,6-1,6-3 | |
| ITF W25 Jerusalem | 11/02 13:20 | 25 | Mao Mushika v Gergana Topalova | 3-6,5-7 | |
| ITF W25 Istanbul | 10/25 15:30 | 25 | [310] Gergana Topalova v Polina Kudermetova [242] | 7-5,1-6,0-6 | |
| ITF W25 Sozopol | 10/18 09:55 | 25 | [359] Adithya Karunaratne v Gergana Topalova [310] | 6-2,6-4 | |
| ITF W25 Sozopol | 10/12 09:30 | 25 | [396] Elena Malygina v Gergana Topalova [332] | 7-6,4-6,6-3 | |
| ITF W25 Sozopol | 10/08 07:00 | 28 | [364] Maria Bondarenko v Gergana Topalova [332] | 7-6,7-6 |
Gergana Topalova (Bulgarian: Гергана Топалова; born 22 February 2000) is a Bulgarian tennis player. She has career-high WTA rankings of No. 231 in singles and No. 388 in doubles. Topalova has won six singles titles and four doubles titles on the ITF Circuit.
On the ITF Junior Circuit, she has 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 main draw debut and lost her first WTA 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.