Namesakes
Fictional Characters from Song Titles:
1 character
(character) Cynthia Margaret 2007 Cynthia Margaret 
Fictional Characters from Television:
2 characters
Cindy Brady 1969; 1990 The Brady Bunch; The Bradys
Cynthia Keener 2005 Medium
Grammy Award Winners:
1 best new artist
(best new artist) Cyndi Lauper 1985
Hall-of-Famers:
1 basketball
(basketball) Cynthia Cooper-Dyke 2010
Notable Actors and Entertainers:
9 actors, 1 model
Lauren Tewes (a.k.a. Cynthia) 1953-
Frances McDormand (a.k.a. Cynthia) 1957-
Cynthia Stevenson 1962-
Cynthia Gibb 1963-
Cynthia Geary 1965-
Cindy Crawford 1966-
Cynthia Nixon 1966-
Cynthia Watros 1968-
Cynthia Addai-Robinson 1985-
Cynthia Erivo 1987-
Notable Athletes:
1 basketball
(basketball) Cynthia Cooper-Dyke 1963-
Notable Musicians:
2 singers
Cyndi Lauper 1953-
Lil' Mo (a.k.a. Cynthia) 1978-
Notable Writers:
1 author
Cynthia Leitich Smith 1967-
Olympic Medalists:
3 silver, 2 gold, 1 bronze, 1 gold/bronze
(gold) Cynthia Goyette 1964 swimming - 4x100 m medley relay
(bronze) Cynthia Potter 1976 diving - springboard
(silver) Cindy Brogdon 1976 basketball
(silver) Cynthia Woodhead 1984 swimming - 200 m freestyle
(gold) Cindy Brown 1988 basketball
(silver) Beth Barr (middle name Cynthia) 1988 swimming - 4x100 m medley relay
(gold/bronze) Cynthia Cooper-Dyke 1988; 1992 basketball
Oscar Award Winners:
1 actress
(actress) Frances McDormand (a.k.a. Cynthia) 1997; 2018; 2021 Fargo; Three Billboards Outside Ebbing, Missouri; Nomadland
Rock and Roll Hall-of-Famers:
1 musician
Cynthia Robinson 1993 Sly and the Family Stone
Tony Award Winners:
2 actresses
(actress) Cynthia Nixon 2006 Rabbit Hole
(actress) Frances McDormand (a.k.a. Cynthia) 2011 Good People