Tags: Swimmer.
Serhiy Mykolaiovych Advena (Ukrainian: Сергій Миколайович Адвена; born August 4 1984 in Kiev) is a Ukrainian swimmer who specialized in freestyle and butterfly events. He is a two-time Olympian (2004 and 2008) and a multiple-time Ukrainian record holder in both 100 and 200 m butterfly. He also helped out the Ukrainian team to upset their American rivals and claim the medley relay title (3:38.49) at the 2005 Summer Universiade in Izmir Turkey.