A cienega or cienaga is a spring that is usually a wet, marshy area at the foot of a mountain, in a canyon, or on the edge of a grassland where groundwater bubbles to the surface. Often, a cienega does not drain into a stream, but evaporates, forming a small playa. The term cienega is used in English in the southwestern United States.

La Cienega (also La Ciénega) may refer to:

• Cienega, an inland marsh or bog