Richard Hayley Lever (1876–1958) was a prominent Australian-American artist celebrated for his contributions to American Impressionism.

Born in Adelaide, Australia, he moved to England in 1899 to study at the famous art colony in St. Ives, where he refined his skills in marine painting under the influence of Impressionist techniques. In 1912, at the encouragement of painter Ernest Lawson, Lever immigrated to the United States. He quickly became a vital part of the New York art scene, associating with "The Eight" and other members of the Ashcan School, such as Robert Henri and George Bellows.

Throughout his prolific career, Lever was known for his spontaneous, bold style and his ability to capture the vibrant atmosphere of coastal towns like Gloucester and Nantucket. 

He served as a highly respected instructor at the Art Students League of New York and received numerous accolades, including a gold medal from the National Arts Club and a commission to paint the presidential yacht for Calvin Coolidge. 

Although he largely retreated from the public eye in his later years due to arthritis, his work is now held in prestigious collections such as the White House and the Brooklyn Museum.