Robert Peak (1927–1992) was an award-winning American illustrator best known for his thirty year contribution to the film industry, creating vibrant and exciting designs for modern movie posters. The United States Postal Service commissioned him to design thirty stamps for the 1984 Olympics, and throughout his prolific career Peak created cover art and illustrations for a wide variety of magazines. In addition, he taught at the Art Center College of Design in Los Angeles and at New York's Art Students League.

Peak's work has appeared in numerous art exhibitions and solo shows. His paintings of Anwar Sadat, Mother Teresa, and Marlon Brando hang in the Smithsonian Institution's permanent collection. His career ended abruptly and tragically in August 1992 after he suffered a brain hemorrhage in a fall.