Yekaterina Aleksandrovna Marennikova (Russian: Екатерина Александровна Маренникова; born 29 April 1982) is a Russian handball player, world champion and olympic medallist playing for HC Kuban Krasnodar and the Russian national team.

[1] She won gold medals at the 2005 World Championships and 2016 Rio Olympics, placing second in 2008 and eighth in 2012.

[2][3] Marennikova is married to Eduard and has a son Andrei.

[3] She has a degree in physical education from the Lesgaft Institute in Saint Petersburg.

This biographical article related to Russian handball is a stub.