Rodion Sergeyevich Dyachenko (Родион Сергеевич Дьяченко; born 22 September 1983 in Georgiyevsk) is a Russian former footballer who played as a forward.

Dyachenko was born in the Russian SFSR in the Soviet Union prior to the breakup of the country in the early 1990s.

After moving with his family to the United States as a child, Dyachenko attended Mountain View High School in Vancouver, Washington, played club soccer with West Villa Thunder, FC Portland and Westside Metros and played college soccer with the University of Nevada, Las Vegas from 2002 to 2005, scoring 23 goals in those four years.

Dyachenko was released by D.C. in January 2009 after playing 41 games and scoring one goal for the team.

On February 26, 2009, the Minnesota Thunder announced the signing of Dyachenko to a two-year contract.