Luis Ortiz (born 29 March 1979) is a Cuban professional boxer. He held the WBA interim heavyweight title from 2015 to 2016, and has challenged twice for the WBC heavyweight title in 2018 and 2019. As an amateur, he won a silver medal at the 2005 Boxing World Cup. Nicknamed "King Kong", Ortiz is known for his formidable punching power and counterpunching skills. As of December 2019, he is ranked as the world's fifth best active heavyweight by The Ring magazine, sixth by the Transnational Boxing Rankings Board and ninth by BoxRec.
Ortiz was a longtime member of the Cuban national team without succeeding at the top international level.
A 30 year old Ortiz made his debut on 16 February 2010, against American boxer Lamar Davis (4-1, 1 KO) in a scheduled 4 round bout at the Seminole Hard Rock Hotel and Casino in Hollywood, Florida. Ortiz won the fight via technical knockout (TKO) after just under 80 seconds of round 1. Ortiz fought again at the Seminole Hard Rock Hotel and Casino for his second professional fight on 15 June against 39 year old Charles Davis. Ortiz won via TKO in round 4. In his third pro fight, Ortiz claimed the vacant WBC FECARBOX heavyweight title against 28 year old Kendrick Releford (22-13-2, (10 KOs) on 24 August 2010. Releford was knocked down once in round 2, as Ortiz won the fight via 8 round unanimous decision 80–72, 79–72, and 79–72. Ortiz won his next 2 bouts via eighth-round stoppage against Zack Page and Francisco Álvarez (12-1, 10 KO), improving his record to 5 wins in as many fights, with 4 coming within the distance. Ortiz fought at the Double Tree Westshore Hotel in Tampa, Florida on 28 January 2011, against Rubén Rivera (3-5, 1 KO). Rivera was deducted 2 points in round 4 and then disqualified in round 5 for repeated low blows.