Karl Henlein (25 April 1892 – 2 May 1960) was an Austrian football manager and former player.
Born in Austrian capital Vienna, Heinlein played with Wiener AC (also known as WAC) in the Austrian First Class since its first edition in season 1911–12 till the winter break of the 1918–19 season.
[11][12][13] Karl Heinlein made 2 appearances for the Austria national football team, one in 1917 and another in 1919.
[14] Karl Heinlein started his coaching career while he was still a player, by coaching HŠK Građanski Zagreb at same time he played there.
Later he coached Spanish side CE Europa in the 1929 La Liga[15] and later Swiss side FC Luzern in the season 1934–35.