Dimitry Viktorovich Vassiliev (Russian: Дмитрий Викторович Васильев, born 26 December 1979 in Ufa) is a Russian ski jumper who has been competing in the World Cup since 1999. His best finish at the World Championships is fifth in the team normal hill in Oberstdorf 2005 while his best individual finish was seventh in the individual large hill at the Sapporo 2007.
At the 2006 Winter Olympics in Turin, Vassiliev finished eighth in the team competition and tenth in the individual normal hill.
He finished seventh in the Ski-flying World Championships in the team event both in 2004 and 2006.
Vassiliev best individual World Cup finish was second in an individual large hill in Garmisch-Partenkirchen in 2001.