Karl Braunsteiner (27 October 1891 – 19 April 1916) was an Austrian football (soccer) player.

[1] Regarded as one of the biggest talents of his era, the small defender played for Wiener Sportclub.

He was captured and died in Tashkent due to typhoid fever as a prisoner of war.

[2] Braunsteiner was a member of the Austrian Olympic squad at the 1912 Summer Olympics and played two matches in the main tournament as well as three matches in the consolation tournament.

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