Harold Herman "Stubby" Kruger (September 21, 1897 – October 7, 1965) was an American competition swimmer who represented the United States at the 1920 Summer Olympics in Antwerp, Belgium.

[5] Kruger was a colleague of Johnny Weissmuller's and performed at carnivals and fairs billed as the Incomparable Water Comedian.

He also had a career in Hollywood as an actor and stunt double that began in the silent era and lasted well into the 1950s.

His last film credit was as Spencer Tracy's double in The Old Man and the Sea.

In 1986, Kruger was inducted into the International Swimming Hall of Fame as a "pioneer swimmer.