James Hal Cone (1936-2018), American theologian from Fordyce, Arkansas, an advocat of black theology and black liberation theology
Herbert Hal Reynolds (1930-2007), American academic, President of Baylor University from 1981 to 1995
Kevin Hal Reynolds (b. 1952), American film director and screenwriter
William Hal Ashby (1929-1988), American film director and film editor
J Hal Deatherage, American Professor of Civil and Environmental Engineering at the University of Tennessee
Conrad Hal Waddington (1905-1975), British biologist who developed the theory of epigenesis
G. Hal Manahan (b. 1886), American Republican politician, Gas and oil dealer; Chair of Elkhart County Republican Party, 1942-44 [1]
Hal E. Broxmeyer (1944-2021), American microbiologist, Professor at the Mary Margaret Walther Program for Cancer Care Research, and Professor of Microbiology and Immunology at the Indiana University School of Medicine
Hal Baylor (1918-1998), stage name of Hal Harvey Fieberling, an American actor, best known for his role as Pvt. 'Sky' Choynski in the film Sands of Iwo Jima
Hal Michael Ketchum (1953-2020), American country music artist, best known for his certified gold album 1991 album, Past the Point of Rescue