Riddle (Shoshoni language: Yakwahnim Paa[1]) is an unincorporated community in the southwestern part of the U.S. state of Idaho, in Owyhee County.

The community lies at the north edge of the Duck Valley Indian Reservation.

[2] In 2000, the average median household income for the ZIP Code Tabulation Area that includes Grasmere and Riddle was $30,921.

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

This Owyhee County, Idaho state location article is a stub.