Namesakes
Barbara O'Neil
(f) 1910-1980 
Notable Actors and Entertainers (actor)
Buck O'Neil
(m) 1911-2006
Hall-of-Famers 2022 (baseball)
Jack O'Neill
(a.k.a. O'Neil) (m)
Fictional Characters from Movies 1994 Stargate
Fictional Characters from Television 1997 Stargate SG-1
Abby O'Neil
(f)
Fictional Characters from Television 1997 Dharma & Greg