Robert Kelly Slater (Cocoa Beach born February 11, 1972) is an American professional surfer known for his competitive prowess and style. He has been crowned World Surf League Champion a record 11 times, including 5 consecutive titles in 1994–98. He is the youngest (at age 20) and the oldest (at age 39) to win the title. Upon winning his 5th world title in 1997, Slater passed Australian surfer Mark Richards to become the most successful champion in the history of the sport. In 2007 he also became the all-time leader in career event wins by winning the Boost Mobile Pro event at Lower Trestles near San Clemente, California. The previous record was held by Slater's childhood hero, three-time world champion Tom Curren.
After earlier being awarded the title prematurely as a result of a miscalculation by the Association of Surfing Professionals (ASP), on November 6, 2011 Slater officially won his eleventh ASP world title at the Rip Curl Pro Search San Francisco, by winning his 4th round heat.
In May 2005, in the final heat of the Billabong Tahiti Pro contest at Teahupo'o, Slater became the first surfer ever to be awarded two perfect scores for a total 20 out of 20 points under the ASP two-wave scoring system (the corresponding honor under the previous three-wave system belongs to fellow American Shane Beschen who achieved the feat in 1996). He did it again in June 2013 at the quarter finals at the Volcom Fiji Pro with two perfect ten waves, only the fourth person in history to do so. Since 1990, Slater had been sponsored primarily by surfwear industry giant Quiksilver until his recent departure on April 1, 2014 to collaborate with fashion brand conglomerate Kering. In a statement released on his social media accounts, Slater states "For years I've dreamt of developing a brand that combines my love of clean living, responsibility and style. The inspiration for this brand comes from the people and cultures I encounter in my constant global travels and this is my opportunity to build something the way I have always wanted to." Kelly Slater is an advocate of a sustainable and clean living lifestyle.
He exclusively rides Channel Islands surfboards equipped with his own signature series of FCS fin masons. As of 2015, Slater has been seen riding unlabelled Firewire surf boards.