Robert B. "Bob" Lewis (May 12, 1924 – February 17, 2006) was an American businessman who owned a number of champion Thoroughbred racehorses during the 1990s and 2000s.
Bob Lewis was born in Minneapolis and grew up in Glendale, California. He served in the United States Army during World War II before studying at the University of Oregon. At Oregon, Lewis was a member of Delta Tau Delta fraternity. After graduating, he worked in Los Angeles as a beer salesman. In 1956, he started his own company, the Foothill Beverage Company, which became one of the biggest Anheuser-Busch distributors in the country.
Active philanthropists, the Lewises have supported a number of charitable works including a $5 million donation to the Pomona Valley Hospital to help establish the Robert and Beverly Lewis Family Cancer Care Center.
In 1990, Lewis and his wife, Beverly J. Lewis, bought their first Thoroughbreds. They became dedicated owners, spending millions at yearling sales and hiring first class trainers such as Bob Baffert and D. Wayne Lukas. The couples' first major success came when Timber Country won 1994 Breeders' Cup Juvenile then in 1995, the Preakness Stakes. At the same time, their filly, Serena's Song, was voted the U.S. Champion 3-Year-Old Filly for 1995. After retiring, in 2002 Serena's Song was inducted in the National Museum of Racing and Hall of Fame. That year they were voted the Big Sport of Turfdom Award.