Ekaterina Andreevna Kazionova (Russian: Екатерина Андреевна Казионова; born 13 January 1999) is a Russian tennis player. Kazionova has career-high WTA rankings of 282 in singles and 332 in doubles. Up to date, she has won two singles and nine doubles titles on tournaments of the ITF Circuit. Kazionova made her WTA Tour main-draw debut at the 2022 Morocco Open, after she received a wildcard entry into the doubles tournament, partnering Yasmine Kabbaj.