Marcus Smith
Marcus Smith may refer to:
- Marcus Smith (defensive lineman, born 1984), American football defensive tackle
- Marcus Smith (rugby union), English rugby union player
- Marcus Smith (wide receiver), American football wide receiver
- Marcus Smith II, American football defensive end
- Marcus A. Smith, United States Senator from Arizona
- Marcus C. Smith, American politician in Indiana
- Marcus G. Smith, president and chief operating officer and director of NASCAR track owner Speedway Motorsports, Inc.
- Sir Marcus Smith (judge), British judge