Ekaterina Yuryevna Yashina (Russian: Екатерина Юрьевна Яшина, IPA: [ɪ̯ɪkətʲɪˈrʲinə ˈjaʂɨnə]; born 6 August 1993) is a professional Russian tennis player. On 7 January 2019, she reached her career-high singles ranking of world No. 335, whilst her best WTA doubles ranking was 129, on 30 January 2023.
She made her WTA Tour main-draw debut at the 2011 Tashkent Open gaining entry as a wildcard player, partnering Sabina Sharipova.