Ondrej Sosenka (born 9 December 1975 in Prague) is a Czech professional cyclist who last rode for the UCI Professional Continental team PSK Whirlpool-Author.
He won the Peace Race in 2002.
He broke the five-year-old UCI hour record on 19 July 2005 in Moscow, Russia, riding 49.7 kilometres (30.9 mi) in one hour.