Lewie Griffith Merritt (nicknamed "Griff") (June 26, 1897 – March 24, 1974) was a major general and early aviator in the United States Marine Corps. Merritt served over 30 years in the Marine Corps, including service in World War I at Belleau Wood and as an aviator during World War II in both the European and Pacific Theaters. After retiring from the Marine Corps, Merritt practiced law in South Carolina.