Stanley Harold "Betz" Klopp (December 22, 1910 – March 11, 1980) was a Major League Baseball pitcher.

[1] Klopp's lone victory came on July 30 over the Pittsburgh Pirates.

Entering the game to replace an injured pitcher, Klopp successfully retired the next 2 batters before being replaced when the Braves next batted.

The Braves regained the lead in that inning, with Klopp recording the victory.

This biographical article relating to an American baseball pitcher born in the 1910s is a stub.