Ekaterina Sergeevna Selezneva (Russian: ???????´?? ?????´???? ?????????, Yekaterina Sergeyevna Seleznyova; born May 18, 1995 in Pushkino, Pushkinsky District, Moscow Oblast) is a Russian individual rhythmic gymnast.
She is the hoop world champion in the Rhythmic Gymnastics World Championships 2019.
She is also the 2018 Grand Prix Final All-around champion and the 2019 Summer Universiade All-Around gold medalist.
On the national level, she is the 2018 Russian National all around bronze medalist.