Serhii Fedorovych Filimonov (Ukrainian: Сергій Федорович Філімонов; born September 20, 1994) is a Ukrainian public figure, a veteran of the Russo-Ukrainian War, leader of the Honor movement, former leader of the Kyiv branch of the Azov Civil Corps and the Kyiv branch of the far-right National Corps party, organizer and participant of activist initiatives against urban construction, in support of political prisoners and victims of political crimes.

From 8th to 10th grade he studied at the Republican Higher School of Physical Culture (Ivan Piddubny Olympic College), where he was professionally engaged in freestyle wrestling.

[9] From 2015 to 2017, he launched a number of public projects, including: "Zooprotection", aimed to combat animal cruelty, support shelters and fight against dog hunters; "One Blood" – a project to collect donated blood for children and wounded soldiers; "Our Future" - helping children left without parental care, a number of sports and educational initiatives.

[citation needed] In 2018, Filimonov took part in the detention of Rafael Lusvarghi, a Brazilian LPR / DPR mercenary.

He was the organizer of numerous direct actions and information campaigns against the construction of Narbut Square, Protasov Gorge, Hay Market, Sviatoshynsky Lane, Oskorka Eco-Park, Krister Hill, Chornobylska Street, against the construction on Andriyivskyy Descent, participated in the struggle for the museum on Post Square.

Activists were attending court hearings on the case and were following the steps of the investigation in order to punish all those involved in Katya's murder.

You will see” in support of Serhii Sternenko, a public figure whose illegal imprisonment has sparked a wave of protests and peaceful actions across the country.

However, work on the film was suspended due to Sentsov's illegal arrest by Russian security services in 2014 and his subsequent imprisonment.