Fabian Lorenz Kowalik (April 22, 1908 – August 14, 1954) was an American professional baseball pitcher.

Kowalik pitched for the Cubs in the 1935 World Series, despite only playing 20 regular season games.

Replacing Hal Lee in left field, Kowalik hit an RBI single in a 4–3 loss.

[1] Kowalik played in the minors from 1937 to 1940, retiring due to persistent arm injuries and lack of form.

This biographical article relating to an American baseball pitcher born in the 1900s is a stub.