•
Henry H. Arnold (1886–1950), American General of the Army and General of the Air Force •
Hap Collard (1898–1968), American Major League Baseball (MLB) pitcher •
Hap Day (1901–1990), Canadian National Hockey League (NHL) Hall of Fame player, coach, and general manager •
Hap Emms (1905–1988), Canadian NHL player, coach, general manager, and team owner •
Hap Farber (born 1948), American National Football League (NFL) player •
Harrison Farber, American professor of medicine and Director of the Pulmonary Hypertension Center at Boston University •
Frank S. Farley (1901–1977), American politician and New Jersey State Senator •
Hobart R. Gay (1894–1983), US Army lieutenant general •
Hap Hadley (1895–1976), American artist specializing in pen and ink representations •
Hap Holmes (1892–1941), Canadian NHL goaltender •
Emil Huhn (1892–1925), American MLB player •
B. Kliban (1935–1990), American cartoonist •
Louis Kuehn (1901–1981), American diver and 1920 Olympic gold medalist •
Harry McSween (born 1945), Professor of Planetary Geoscience and Distinguished Professor of Science at the University of Tennessee at Knoxville •
Hap Marre, American soccer player of the 1910s •
Herb Mitchell (ice hockey) (1895–1969), Canadian NHL player •
Hap Moran (1901–1994), American NFL halfback •
Hap Myers (1887–1967), American MLB player •
Hap Myers (ice hockey) (born 1947), Canadian NHL player •
Harold Ridley (Jesuit) (1939–2005), Roman Catholic priest and President of Loyola College in Maryland •
Hap Sharp (1928–1993), American race car driver •
Hap Spuhler (1918–1982), American college head baseball coach and athletic director •
Hap Ward (1868–1944), American comedian and actor •
Hap Ward (1885–1979), who played one game in the MLB when the Detroit Tigers went on strike == Fictional characters with the nickname ==