Namesakes
Fictional Characters from Books:
1 character
Tacy Kelly 1940 Betsy-Tacy 
Fictional Characters from Plays and Musicals:
1 character
Hop Kelly 1965 Kelly
Fictional Characters from Television:
9 characters
Grace Kelly 1993 Grace Under Fire
Jimmy Kelly 1993 Grace Under Fire
John Kelly 1993 NYPD Blue
Libby Kelly 1993 Grace Under Fire
Patrick Kelly 1993 Grace Under Fire
Quentin Kelly 1993 Grace Under Fire
Laura Michaels Kelly 1993 NYPD Blue
Alex Kelly 2003 The O.C.
Charlie Kelly 2005 It's Always Sunny in Philadelphia
Hall-of-Famers:
2 baseball, 2 football, 1 ice hockey
(baseball) Mike "King" Kelly 1945
(ice hockey) Leonard "Red" Kelly 1969
(baseball) George Kelly 1973
(football) Leroy Kelly 1994
(football) Jim Kelly 2002
Notable Actors and Entertainers:
11 actors
Paul Kelly 1899-1956
Patsy Kelly 1910-1981
Gene Kelly 1912-1996
Nancy Kelly 1921-1995
David Kelly 1929-2012
Grace Kelly 1929-1982
Moira Kelly 1968-
Michael Kelly 1969-
Lisa Robin Kelly 1970-2013
Jean Louisa Kelly 1972-
Minka Kelly 1980-
Notable Artists:
1 painter
Ellsworth Kelly 1923-2015
Notable Athletes:
1 football, 1 ice hockey
(ice hockey) Leonard "Red" Kelly 1927-2019
(football) Jim Kelly 1960-
Notable Evildoers:
1 criminal
Ned Kelly 1854-1880
Notable Journalists:
1 commentator
(commentator) Megyn Kelly 1970-
Notable Musicians:
5 singers
R. Kelly 1967-
Michael Patrick Kelly 1977-
Maite Kelly 1979-
Angelo Kelly 1981-
Iggy Azalea (a.k.a. Kelly) 1990-
Notable Politicians and Statespeople:
1 politician
Mark Kelly 1964-
Olympic Medalists:
2 gold, 2 silver
(silver) Daniel Kelly 1908 long jump
(gold) Fred Kelly 1912 110 m hurdles
(gold) Annette Rogers (a.k.a. Kelly) 1932; 1936 4x100 m relay
(silver) Margaret Kelly-Hohmann 1980 swimming - 4x100 m medley relay
Oscar Award Winners:
1 actress
(actress) Grace Kelly 1955 The Country Girl
Other Royalty:
1 princess
Grace of Monaco (a.k.a. Kelly) 1956-1982 Monaco
Rock and Roll Hall-of-Famers:
1 musician
Betty Kelly 1995 Martha and the Vandellas
Tony Award Winners:
1 actor, 1 actress
(actor) Paul Kelly 1948 Command Decision
(actress) Nancy Kelly 1955 The Bad Seed