Theodoros Velkos (Greek: Θεόδωρος Βέλκος; born November 20, 1976) is a male badminton player from Greece.
Velkos competed in badminton at the 2004 Summer Olympics in men's doubles with partner George Patis. They were defeated in the 32nd round by Chan Chong Ming and Chew Choon Eng of Malaysia. In his home country he won 12 titles at the Greek National Badminton Championships until 2010.
http://www.sports-reference.com/olympics/athletes/ve/theodoros-velkos-1.html