See http://state.osmlatam.org/
State of the Map Latam is the annual conference for all mappers and OpenStreetMap users in Latin America. The first edition was held in Santiago de Chile in September, 2015. The 2016 edition will be in São Paulo (Brazil), from 25 to 27th November. The program includes talks, panels, workshops and mapathons about the most diverse subjects related to the OpenStreetMap (OSM) world.
As well as OSM mappers, the event will have attendees from Open Data communities, students, geoinformation professionals, companies, public institutions, etc.