Kateryna Volodymyrivna Volodko (née Bondarenko; Ukrainian: Катерина Володимирівна Бондаренко; born 8 August 1986) is a tennis player from Ukraine.

Over her career, Bondarenko has defeated top ten players Elena Dementieva, Sara Errani, Ana Ivanovic, Garbiñe Muguruza, Li Na, Agnieszka Radwańska, Roberta Vinci, and Venus Williams.

Bondarenko was born on 8 August 1986 in Kryvyi Rih, Ukrainian SSR (nowadays Ukraine) to father, Vladimir, and mother, Natalia.

[4] However, on 24 January 2008, paired with her sister Alona, she won the doubles tournament at the Australian Open without seeding, defeating in the final the No.

[6] At the Paris Indoor, she upset fifth seed and defending champion, Nadia Petrova, in the first round, in three sets,[7] and she defeated qualifier and compatriot Yuliana Fedak.

[9] In doubles, she partnered with her sister Alona, and they won the tournament defeating Czech pair Vladimíra Uhlířová/Eva Hrdinová in the final.

[10] Bondarenko then played at the Diamond Games in Antwerp, where she beat qualifier and compatriot Tatiana Perebiynis and young Russian Alisa Kleybanova.

[11] At the Miami Open, she defeated Pauline Parmentier, in the second round, she lost to tenth seed Elena Dementieva.

[23][24] The week after, she played at the Rosmalen Open where she lost in the first round to qualifier and eventual champion, Tamarine Tanasugarn.

[31] In the bronze medal match, they lost to Chinese pair Yan Zi/Zheng Jie,[32] and ended in fourth place.

Playing her final tournament of the year, the Ladies Linz, she lost in the first round to fifth seed Nadia Petrova in three sets.

[49] At the Porsche Grand Prix, Bondarenko reached the final round of qualifying where she lost to Anna Chakvetadze.

[58] Representing Ukraine at the Summer Olympics, Bondarenko lost in the first round to sixth seed Petra Kvitová, in three sets.

She received a wildcard into the first round of the Tashkent Open where she fell to the top seed and defending champion Bojana Jovanovski in a tight three set match.

Bondarenko began season by playing qualifying at the Australian Open but lost in the second round to 22nd seed Laura Siegemund, in straight sets.

She then played at the Monterrey Open where she lost in the final round of qualifying to fourth seed Tímea Babos.

In the main draw, she had her first WTA Tour win since she returned from retirement by beating Alison Riske in three sets.

At the Prague Open, she lost in the second round of qualifying to sixth seed Danka Kovinić, in straight sets.

[68] She began grass-court season by playing qualifying at the first edition of the Nottingham Open where she lost in the first round to compatriot Olga Savchuk.

In the main draw, she upset top seed Venus Williams in straight sets,[71] and in the second round Mona Barthel, in a three-setter.

[76] Bondarenko qualified for the Western & Southern Open in Cincinnati, beating 19th seed Lara Arruabarrena and Jana Čepelová.

At the Japan Women's Open, Bondarenko upset top seed Carla Suárez Navarro in the first round.

Bondarenko qualified for the Qatar Ladies Open defeating María José Martínez Sánchez and ninth seed Evgeniya Rodina.

[93] At the Indian Wells Open, she qualified for the main draw beating Paula Kania, and 19th seed Lourdes Domínguez Lino.

At the Dubai Championships, she won her first singles match of the year defeating qualifier Aryna Sabalenka in the first round.

[129] In the second round, Bondarenko won when fifth seed Garbiñe Muguruza retired at 4–1 in the opening set due to a left achilles injury.

Playing in her final tournament before the French Open at the Nürnberger Versicherungscup, she was defeated in the first round of qualifying by Alexandra Cadanțu.

[139] In February, Bondarenko competed at the Thailand Open where she lost in the first round to fifth seed and eventual champion, Magda Linette.

267, she qualified for the main draw of the WTA 500 2023 Zhengzhou Open, losing in the first round to Zheng Qinwen.

323, at the age of 38, she qualified for the main draw of the WTA 500, the 2024 Monterrey Open, but was defeated by lucky loser Lina Glushko in the first round.