The author of the novel 'Le Père Goriot' is Honore de Balzac (6 letters). Balzac was a French novelist and playwright who is considered one of the founders of realism in European literature. He was a prolific writer, producing over 90 novels and novellas, as well as numerous short stories, plays, and essays. His works are known for their detailed depictions of French society during the 19th century.