Denn

Denn may refer to:


 * DENN, the NASDAQ ticker symbol for Denny's
 * Denn, County Cavan, a parish in County Cavan, Ireland
 * Denn GFC, a Gaelic Athletic Association club in County Cavan, Ireland

People with the surname

 * Matthew Denn (born 1966), American lawyer and politician
 * Robert Denn, English cricketer