Robert or Bob Cobb may refer to:
Robert W. Cobb (), US government official Robert Cobb (American football) (1957–1995), American football defensive end Robert H. Cobb, American restaurateur, founder of the Brown Derby, purported birthplace of the Cobb salad
Fictional characters Bob Cobb, the secret identity of Mon-El of the Legion of Superheroes when he lives in Smallville. Bob Cobb (Seinfeld) or "the Maestro", a minor character from the American TV sitcom Seinfeld