The Chocón Machacas River is a river in eastern Guatemala. The sources of the 53-kilometre-long (33 mi) river are on the eastern slopes of the Sierra de Santa Cruz at 15°47′38″N 89°08′02″W / 15.793835°N 89.133890°W / 15.793835; -89.133890. From there it flows in a generally west-south-west direction into the Golfete Dulce. The Chocón Machacas and Golfete Dulce complex forms one of Guatemala's few remaining habitats for the endangered Caribbean manatee (Trichechus manatus).

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• Castillo Lemus, Noé Ariel (2005). Estudio de identificación y caracterización preliminar de corredores biológicos con conectividad al biotopo Chocón Machacas (PDF). Archived from the original (pdf) on 2011-07-14. Retrieved 2011-03-07.