Under the Lash is a 1921 American silent drama film directed by Sam Wood and starring Gloria Swanson.

[2] As described in a film magazine,[3] Deborah (Swanson), the second wife of intolerant and bigoted Boer farmer Simeon Krillet (Simpson), first learns of kindness from the Englishman Robert Waring (Hamilton) who comes to study farming from her husband.

When her husband threatens to beat her for reading one of the Englishman's books Deborah tells him, to save him from the young man's wrath, that she is to become a mother.

The disclosure of her fabrication brings renewal of his wrath and a determination to kill her.

It was the only Paramount Pictures film released in the early 1920s starring Gloria Swanson that did not do well at the box office.