Yekaterina Mikhailovna Ivonina (Russian: Екатерина Михайловна Ивонина; born 14 June 1994) is a Russian distance runner who specialises in the 3000 metres steeplechase.

[4] She won her first national title in the 2000 metres steeplechase at the 2013 Russian Under-20 Indoor Championships.

[5] She began training with S. A. Popov, who coached former world champion Tatyana Tomashova among others.

[6] Ivonina's international career came to a halt with the suspension of Russian Athletics by the International Association of Athletics Federations, following investigations into a systemic doping program in November 2015.

A combination of pandemic restrictions and her failure to be approved to compete at the delayed 2020 Summer Olympics meant her only performance of note in 2021 was a steeplechase win at the 2021 Russian Athletics Championships.