Music

• Bob Lewis (musician), member of Devo
• Bobby Lewis, American rock and roll and R&B singer
• Bobby Lewis (country singer)
• Rob Lewis (musical director, arranger)
• Bob Lewis (DJ), American disk jockey on WABC (AM) radio in New York in the 1960s
• Rob Lewis (record producer)

Sport

• Robert Lewis (rugby player), Welsh rugby union player
• Robert B. Lewis, owned Silver Charm and Charismatic winners of the 1997 and 1999 Kentucky Derby
• Bob Lewis (basketball), retired American basketball player, played for the North Carolina Tar Heels
• Bob Lewis (golfer)

Other

• Robert Lewis (actor) (1909-1997), American actor, director and founder of the Actors Studio
• Robert Lewis (artist) (born 1946), American realist landscape painter and plein air oil painter
• Robert W. Lewis, politician from Vermont
• Robert Jacob Lewis (1864-1933), politician from Pennsylvania
• Robert A. Lewis (1917-1983), U.S. Air Force officer, co-pilot of the Enola Gay
• Robert E. Lewis (1857-1941), U.S. federal judge
• Robert Q. Lewis (1921-1991), radio & TV personality
• Robert S. Lewis (1856-1956), North Dakota politician
• Rob Lewis (entrepreneur), entrepreneur and Executive Chairman of Omnifone
• Robbie Lewis, fictional character in Morse
• Robert Lewis (MP) for Canterbury (UK Parliament constituency)

[ Source: Wikipedia ]