Waif of the River is a 1952 historical mystery crime novel by the British author Jeffrey Farnol. It was the final entry in his series of novels featuring Jasper Shrig, a member of the Bow Street Runners during the Regency era. He died shortly after the novel's completion.
When a young woman is rescued from the Thames, unconscious and nearly drowned, it triggers an investigation by Shrig that uncovers a conspiracy of embezzlement and attempted murder.