Betty Careless or Betsy Careless (c. 1704–1739) was a notorious English prostitute and bagnio-owner. Probably born Elizabeth Carless (though she later used the name Mrs. Elizabeth Biddulph), she adapted her name to better suit her profession. Her name, beauty and reputation made her, like Sally Salisbury before her, something of an archetypal courtesan for the popular culture of the day.