Vancenza; or, the Dangers of Credulity

Vancenza; or, the Dangers of Credulity is the debut novel by English author Mary Robinson, first published in February 1792. Perhaps due to Robinson's notoriety as a celebrity, particularly her affair with the Prince of Wales, the novel proved an instant success and sold out on its first day of publication. Its popularity saw a third edition appear later that month, in which Robinson wrote a dedication denouncing being called a "Writer of Novels". Despite this, Robinson would go on to publish a further six novels.

Set in fifteenth-century Spain, Vancenza capitalized on the then growing popularity of the Gothic novel, particularly in the wake of the success of Ann Radcliffe.