Karl Koller (9 February 1929 – 24 January 2009[1]) was an Austrian football player.

He is regarded, behind Ernst Ocwirk and Gerhard Hanappi, as one of the best Austrian midfielders of all time and was rated as one of the best 100 European footballers of the 20th century by the IFFHS.

[2] Normally a center midfielder, Koller was capable in both in defense and attack and was well known for technique, strength and powerful shot from distance.

He made his debut for Austria in a March 1952 friendly match against Belgium and was a participant at the 1954 FIFA World Cup in Switzerland, where they reached 3rd place and 1958 FIFA World Cup, where he scored a goal in a match against England.

This biographical article related to association football in Austria, about a midfielder, is a stub.