Riddle, Idaho

Riddle (Shoshoni language: Yakwahnim Paa ) is an unincorporated community in the southwestern part of the U.S. state of Idaho, in Owyhee County. Located on SH-51, it is 13 mi north of the border with Nevada and 79 mi south of Mountain Home. The community lies at the north edge of the Duck Valley Indian Reservation.

The community has the name of the local Riddle family.

In 2000, the average median household income for the ZIP Code Tabulation Area that includes Grasmere and Riddle was $30,921. Riddle's elevation is 5367 ft above sea level.

Riddle was the fictional location for the beginning and end of the film Vanishing Point (1997 remake).