Schwellenbach

Schwellenbach is a surname. Notable people with the surname include:
 * Edgar W. Schwellenbach (1887–1957), American judge from the state of Washington, brother of Lewis
 * Lewis B. Schwellenbach (1894–1948), American politician and judge from the state of Washington, brother of Edgar
 * Spencer Schwellenbach (born 2000), American baseball player