Sergey Sergeyevich Zasimovich (Russian: Сергей Сергеевич Засимович; born 11 March 1986) is a Kazakhstani high jumper.
He was born in Karagandinskaya.[1] He won the silver medal at the 2006 Asian Games, and finished twelfth at the 2005 Asian Championships. He competed at the 2007 World Championships and the 2008 World Indoor Championships without reaching the final.[1] At the 2010 World Indoor Championships he failed to record a valid jump.[2]
His personal best of 2.30 metres was recorded in June 2007 in Bangkok.[1] He is 1.93 m and weighs 72 kg.[3]