Robert (Bob) Collis (1900-75) was a Dublin doctor. Working with the Red Cross at Belsen concentration camp, he helped revive emaciated children. He also exposed the dreadful conditions in Dublin slums with a play, Marrowbone Lane, at the Gate Theatre, next to the Rotunda.

In Dublin he started a cerebral palsy clinic, where he treated the young Christy Brown, later assisting him to publish his autobiography, My Left Foot. Brown later wrote the foreword to Collis's autobiography, which was published after his death from a riding accident.