Alexander "Xandl" Popovic (18 July 1891 - September 1952) also known by different variations of his last name such as Popovich, Poppovich and Popovic I, was a professional football player and manager from Austria.
He played all of his club football in Vienna, most prominently for Austria Vienna where he spent over a decade, winning the Austrian Cup twice and the Austrian Championship. He also won the Austrian Championship with Rapid Vienna.
He made his debut for Austria in October 1911 against Germany. He earned 33 caps, scoring one goal.
After retiring from playing, he moved into the management field, managing top clubs in Germany, such as Hertha Berlin and later Italy, where he managed Lazio and Bologna.