Galen is the surname of:

People Albert J. Galen (1876–1936), Justice of the Montana Supreme Court Louis Galen (1925–2007), American banker, CEO and philanthropist Rich Galen (born 1946), American columnist, Republican strategist and former press secretary Robert S. Galen (born 1946), physician, Professor Emeritus Epidemiology and former Senior Associate Dean in the College of Public Health at the University of Georgia

Fictional characters Dr. Galén, in Karel Čapek's play The White Disease and in its movie adaptation Skeleton on Horseback Richard Galen, in the Star Trek: The Next Generation episode "The Chase"

See also Galen family