This document summarizes dialogue, activities and outputs of the first Regional Lionfish Strategy Workshop conducted in Cancun, Mexico on August 27th – 28th, 2010. The summary does not serve as an analysis of workshop results and identified next steps. Rather, the included outputs inform future development of a ‘best practices’ manual and serve as the foundation of a regional strategic framework for lionfish control in the wider Caribbean. The workshop engaged a diverse set of marine resource professionals, with attendees hailing from 20 different Caribbean countries and territories. Participants included marine protected rea (MPA) managers, fisheries officers and resource management authorities, scientists, non‐a governmental organizations (NGOs), academics, and regional project managers.