Konstantinos "Kostas" Douvalidis (Greek: Κώστας Δουβαλίδης; born 10 March 1987) is a Greek hurdler.

He was born in Drama to an American father and a Greek mother.

[2] As a junior, he won the silver medal at the 2005 European Athletics Championships, the bronze medal at the 2006 World Junior Championships and the gold medal at the 2007 European U23 Championships.

He competed at the 2007 World Championships, the 2008 Olympic Games without reaching the final.

This biographical article relating to Greek athletics is a stub.