Denis Osadchenko (born 11 May 1990 in Simferopol) is a Ukrainian-German retired footballer.
He began his career with 1.FC Wilmersdorf. He joined Hertha 03 Zehlendorf in 2001, and later Tennis Borussia Berlin on the youth side in January 2006. He then left on 1 July 2008 for the youth side of FC Carl Zeiss Jena and was promoted on 14 January 2009 to the first team, who played his debut on 25 October 2009 against SpVgg Unterhaching.