Alkali Flat/La Valentina is an island platformed Sacramento RT light rail station in Sacramento, California, United States. The station was opened on March 12, 1987, and is operated by the Sacramento Regional Transit District as part of the Blue Line. It is located on 12th street near D street in the Alkali Flat neighborhood, just west of Downtown.

A dry lake is an ephemeral lakebed, or a remnant of an endorheic lake. Such flats consist of fine-grained sediments infused with alkali salts. Alternative names for the dry lake include alkali flat, alkali sink and playa.