The Riddle House is an old Edwardian house located in Palm Beach County, Florida. The house was built in West Palm Beach, Florida in 1905 by some of Henry Flagler's hotel construction workers. Originally serving as a funeral parlor (then known as "Gatekeeper's Cottage"), the Riddle House was also a house to the overseers of Woodlawn Cemetery, who would deter grave robbery. By 1920, the house became privately owned by Karl Riddle, a city manager and superintendent of West Palm Beach. He is the namesake of the house.