Namesakes
Fictional Characters from Movies:
1 character
Reggie Lass 2009 Dead like Me: Life After Death 
Fictional Characters from Television:
3 characters
Gina Calabrese 1984 Miami Vice
Reggie Lass 2003 Dead Like Me
Regina Newly 2007 Samantha Who?
Notable Actors and Entertainers:
2 actors, 1 presenter
Regina King 1971-
Quinty Trustfull (a.k.a. Regina) 1971-
Jenna Fischer (a.k.a. Regina) 1974-
Notable Musicians:
3 singers, 1 musician
Elis Regina 1945-1982
Betty Wright (a.k.a. Regina) 1953-2020
Shania Twain (a.k.a. Regina) 1965-
Regina Spektor 1980-
Olympic Medalists:
1 bronze, 1 silver/gold
(bronze) Reggie de Jong 1980 swimming - 4x100 m freestyle relay
(silver/gold) Alice Brown (a.k.a. Regina) 1984; 1988 100 m; 4x100 m relay
Oscar Award Winners:
1 actress
(actress) Regina King 2019 If Beale Street Could Talk
Rock and Roll Hall-of-Famers:
1 musician
Gina Schock 2021 The Go-Go's
Saints:
1 blessed, 1 saint
Saint Regina ?-286
Blessed Regina Protmann 1552-1613