Roy Yamaguchi is an American celebrity chef, restaurateur, cookbook author and television personality. He is the founder of 30 Roy’s Restaurants, including 28 in the United States, one in Guam and one in Tokyo, Japan. Yamaguchi is also the co-founder and co-chair of the Hawai‘i Food & Wine Festival, Hawaii's premier epicurean event hosting 80 chefs from around the world.

He is revered for his eclectic blend of California-French-Japanese cooking traditions inspired with fresh flavors of the Islands. He was the first from Hawaii to be bestowed with the prestigious James Beard Best Pacific Northwest Chef Award in 1993. He has hosted six seasons of the PBS-TV show, Hawaii Cooks with Roy Yamaguchi, seen on more than 300 stations in all 50 states, as well as in over 60 countries. Equally notable, he was a featured chef on the acclaimed Food Network program, My Country, My Kitchen, which takes viewers back to his roots in Japan. Yamaguchi has also appeared on Bravo, Top Chef Masters as one of 12 of the nation’s most notable chefs competing for the title of Top Chef Master and has appeared as Iron Chef Asian in the first American incarnation of the Japanese television show, Iron Chef USA.

Yamaguchi is also part of United Airline's Congress of Chefs, a group of carefully selected culinary experts who continually evaluate the ever-changing food trends in an effort to bring the best inflight dining experiences to United customers. He has published four cookbooks: Pacific Bounty, Roy’s Feasts from Hawaii, Hawaii Cooks: Flavors from Roy’s Pacific Rim Kitchen and Roy’s Fish and Seafood. Yamaguchi has also been a celebrity presenter for Authentescapes, a specialty tour operator offering unique travel experiences to destinations around the world. He has been featured in tours to South Africa, United Arab Emirates, Egypt, Japan, Europe and Australia.