Namesakes
Galen
(m) 129-c. 216 
Notable Scientists and Inventors
Patrick Dempsey
(a.k.a. Galen) (m) 1966-
Notable Actors and Entertainers (actor)
Conchata Ferrell
(a.k.a. Galen) (f) 1943-2020
Notable Actors and Entertainers (actor)
Galen Rupp
(m) 1986-
Olympic Medalists 2012; 2016 10000 m; marathon (silver/bronze)
Galen Spencer
(m) 1840-1904
Olympic Medalists 1904 archery - team round (gold)