This is an overview of festivals and observances found in the Okinawa Islands, Okinawa Prefecture of southwestern Japan. The Okinawan culture is noted for extreme diversity. The following list is based on south-central Okinawa, and may not be applied to northern Okinawa. Miyako and Yaeyama hold substantially different festivals and observances.
Unless otherwise noted, dates are according to the traditional lunisolar calendar. The categories below ("January - May" and "June - December") are artificial, created for ease of article navigation.