Carlos Alberto "Beto" Rentería Mantilla (born 11 March 1945 in Tuluá, died 16 September 2020 in Tuluá, Valle del Cauca) was a former Colombian narcotrafficker and crime boss, presumed leader of the Norte del Valle Cartel. Rentería was believed by the United States government to be holding a leadership position within the drug cartel, he had been labeled "one of Colombia's most powerful and sophisticated narcotics traffickers" by Adam Szubin, Director of the Office of Foreign Assets Control, United States Department of the Treasury. The Attorney General of Colombia and the Colombian National Police accuse Rentería of drug trafficking and money laundering.