Robert Pierson may refer to: Robert H. Pierson (1911–1989), leading figure in the Seventh Day Adventists Robert Laughlin Pierson (1926–1997), Episcopal clergyman and Freedom Rider Robert Scott Pierson, Canadian shipping magnate MV Robert S. Pierson, a lake freighter built in 1973 Robert Pierson (minister) (died 1673), clergyman Robert Pierson (undercover officer), testified at the Chicago 7 trial, see Chicago 10 Robert Pierson (voice actor), see Iczer Girl Iczelion