Namesakes
Fictional Characters from Television:
4 characters
Jennifer Hart 1979 Hart to Hart 
Jonathan Hart 1979 Hart to Hart
Colin Hart 2002 Everwood
Laynie Hart 2002 Everwood
Nobel Prize Winners:
1 economics
(economics) Oliver Hart 2016
Notable Actors and Actresses:
2 actresses, 1 actor/comedian
Roxanne Hart 1952-
Melissa Joan Hart 1976-
Kevin Hart 1979-
Notable Athletes:
1 soccer
(soccer) Joe Hart 1987-
Notable Writers:
1 author
Josephine Hart 1942-2011
Olympic Medalists:
1 gold
(gold) Eddie Hart 1972 4x100 m relay
Saints:
1 blessed
Blessed William Hart ?-1583