Namesakes
American First Ladies:
1 first lady
Jackie Kennedy 1961-1963 
American Presidents:
1 president
John F. Kennedy 1961-1963
Eurovision Song Contest Winners:
1 winner
Lulu (a.k.a. Kennedy) 1969 United Kingdom
Fictional Characters from Books:
2 characters
Ella Lorena Kennedy 1936 Gone With the Wind
Frank Kennedy 1936 Gone With the Wind
Fictional Characters from Movies:
1 character
May Kennedy 2002 May
Fictional Characters from Television:
2 characters
Karl Kennedy 1985 Neighbours
Susan Kennedy 1985 Neighbours
Hall-of-Famers:
1 football, 1 ice hockey
(ice hockey) Ted Kennedy 1966
(football) Cortez Kennedy 2012
Most Valuable Players:
1 winner
Ted Kennedy 1955 ice hockey
Notable Activists and Revolutionaries:
1 activist
(activist) Florynce Kennedy 1916-2000
Notable Actors and Entertainers:
4 actors, 1 actor/comedian
George Kennedy 1925-2016
Charles Rocket (a.k.a. Kennedy) 1949-2005
Maria Doyle Kennedy 1964-
Jamie Kennedy 1970-
Patrick Kennedy 1977-
Notable Athletes:
1 ice hockey
(ice hockey) Ted Kennedy 1925-2009
Notable Filmmakers:
1 producer
Kathleen Kennedy 1953-
Notable Musicians:
2 singers, 1 musician/singer
Lulu (a.k.a. Kennedy) 1948-
Maria Doyle Kennedy 1964-
Dermot Kennedy 1992-
Notable Politicians and Statespeople:
1 politician
Robert F. Kennedy 1925-1968
Notable Writers:
1 author
A. L. Kennedy 1965-
Olympic Medalists:
1 silver, 1 silver/bronze
(silver) Angela Kennedy 1996 swimming - 4x100 m medley relay
(silver/bronze) Courtney Kennedy 2002; 2006 ice hockey
Oscar Award Winners:
1 actor
(actor) George Kennedy 1968 Cool Hand Luke
Pulitzer Award Winners:
1 literature
(literature) William Kennedy 1984 Ironweed