Robert or Rob Simmons may refer to:
Rob Simmons (born 1943), U.S. Representative from Connecticut Rob Simmons (rugby union) (born 1989), Australian rugby union player Robert G. Simmons (1891–1969), U.S. Representative from Nebraska Robert Simmons (South Carolina politician), state legislator who serves in the South Carolina Senate from Berkeley County Robert Malcolm Simmons (born 1938), director of the Randall Division of Cell and Molecular Biophysics at King's College London Bob Simmons (surfer) (Robert Wilson Simmons, 1919–1954), early surfing pioneer Robert John Simmons (1837–1863), Bermudian who served in the American Civil War Robert Simmons (prisoner), African American conscientious objector and anti-war activist Rob Simmons, character from the Mighty Orbots Mr. Robert Simmons, fictional character from the Nickelodeon animated series Hey Arnold! Robert Simmons (hurdler) (born 1918), 400 m hurdles runner-up at the 1939 USA Outdoor Track and Field Championships
See also Bob Simmons (disambiguation)