Marco Antonio Lopez (born April 7, 1978) is an Arizona politician.
He has served in both elected and non-elected public offices, including Mayor of Nogales, Arizona, Executive Director of the Arizona-Mexico Commission, Policy Adviser to Arizona Governor Janet Napolitano for Mexico and Latin America, and Senior Adviser for International Affairs to the Governor.
He is best known as a previous Chief of Staff of United States Customs and Border Protection who served from 2009 to 2011 under CBP Commissioner Alan Bersin, and as Senior Advisor to Mexican billionaire Carlos Slim.