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The Barranca de Yaco or Barranca Yaco (Yaco's ravine) is a geographical feature in the ancient camino real (royal road) of the Viceroyalty of the Río de la Plata, located between Villa Tulumba and Sinsacate, in Argentina.

The place is famous because caudillo Juan Facundo Quiroga was assassinated there by a gang led by Santos Pérez. Today, there is a monument that remembers the martyr.

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