Ekaterina Bychkova, Russian tennis player
Ekaterina Andreevna Bychkova (Russian: Екатерина Андреевна Бычкова; born 5 June 1985) is a tennis player from Russia.

In her career, Bychkova won ten singles and five doubles titles on the ITF Circuit. On 20 February 2006, she reached her best singles ranking of world No. 66. On 29 January 2007, she peaked at No. 106 in the doubles rankings.

Bychkova defeated defending champion Svetlana Kuznetsova in the first round of the 2005 US Open. It was the first time a defending champion for the US Open had lost in the first round.

She was coached by her mother, Liudmila Bychkova. Her father's name is Andrey Bychkov. Introduced to tennis by her mother, she began playing at the Spartak and Chajka tennis clubs. Currently coach and commentator on Eurosport, Ekaterina was also co-host with Alan Moore on Capital Sports from 2017–18.Bychkova returned to the circuit in February 2021, competing on the ITF Women's World Tour.