The Sea Urchin is a 1913 American silent short romantic drama film directed by Edwin August and starring Jeanie MacPherson and Lon Chaney. The film was the earliest known character role by Lon Chaney and the first screenplay by MacPherson. The story follows a hunchback fisherman who finds a young girl and raises her into womanhood with the intention of marrying her. The film was released on August 22, 1913, and was played across the United States. The film is presumed lost.