Río Piedras is a rapid transit station in the San Juan Metropolitan Area, Puerto Rico. It is located between Cupey and Universidad stations on the only line of the Tren Urbano system, in the downtown area of Río Piedras (Río Piedras Pueblo), in the city of San Juan. The station is named after Río Piedras where it is located, itself named after the Piedras River which crosses the area. The trial service ran in 2004, however, the regular service only started on 6 June 2005.

• Río Piedras Pueblo (downtown Río Piedras)
• José de Diego pedestrian street
• Plaza del Mercado de Río Piedras (Río Piedras marketplace building)
• University of Puerto Rico, Río Piedras campus

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  Northern entrance of the station
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  Río Piedras entrance to the station
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  View from the platform. The unused eastward tunnel is intended for a possible future extension of the Tren Urbano system to Carolina.