Upala is a canton in the Alajuela province of Costa Rica. The head city is in Upala district.
Upala has an area of 1,580.67 km² and a mean elevation of 194 metres.
Upala Canton is bordered by Nicaragua on the north, the Las Haciendas River on the northwest, Rito River on the southeast, and the Cordillera de Guanacaste on the south. The Rincón de la Vieja, Santa María, Miravalles and Tenorio volcanoes are landmarks along the southern border.