Namesakes
Emmy Award Winners:
1 actress
(actress) Glenn Close 2008; 2009 Damages 
Fictional Characters from Television:
2 characters, 1 hero
Glenn Foy 1997 Ally McBeal
Glenn Quagmire 1999 Family Guy
Glenn Rhee 2010 The Walking Dead
Hall-of-Famers:
2 ice hockey
(ice hockey) Glenn Hall 1975
(ice hockey) Glenn Anderson 2008
Nobel Prize Winners:
1 chemistry
(chemistry) Glenn T. Seaborg 1951
Notable Actors and Entertainers:
7 actors
Glenn Ford 1916-2006
Glenn Corbett 1933-1993
Steve Martin (a.k.a. Glenn) 1945-
Glenn Close 1947-
Glenn Morshower 1959-
Glenn Quinn 1970-2002
Glenn Howerton 1976-
Notable Athletes:
2 ice hockey, 1 soccer, 1 wrestling
(ice hockey) Glenn Hall 1931-
(ice hockey) Glenn Anderson 1960-
(wrestling) Glenn Thomas "Kane" Jacobs 1967-
(soccer) Glenn Whelan 1984-
Notable Journalists:
1 commentator
(commentator) Glenn Beck 1964-
Notable Musicians:
3 musicians, 1 singer
Glenn Miller 1904-1944
Glenn Gould 1932-1982
Glenn Tipton 1947-
Glenn Medeiros 1970-
Notable Scientists and Inventors:
1 chemist
Glenn T. Seaborg 1912-1999
Olympic Medalists:
6 silver, 4 bronze, 3 gold, 2 silver/gold
(silver) Glenn Hartranft 1924 shot put
(silver) Glenn Graham 1924 pole vault
(silver) Glenn Cunningham 1936 1500 m
(silver/gold) Glenn Hardin 1932; 1936 400 m hurdles
(gold) Glenn Morris 1936 decathlon
(gold) Glenn Davis 1956; 1960 400 m hurdles; 4x400 m relay
(gold) Scott May (a.k.a. Glenn) 1976 basketball
(bronze) Glenn Buchanan 1984 swimming - 100 m butterfly; swimming - 4x100 m medley relay
(silver) Glenn Beringen 1984 swimming - 200 m breaststroke
(silver/gold) Ed Moses (a.k.a. Glenn) 2000 swimming - 100 m breaststroke; swimming - 4x100 m medley relay
(silver) Glenn Williams 2004 baseball
(bronze) Lou Marson (a.k.a. Glenn) 2008 baseball
(bronze) Glenn Turner 2012 field hockey
(bronze) Glenn Ochal 2012 rowing
(silver) Glenn O'Shea 2012 cycling - track
Rock and Roll Hall-of-Famers:
4 musicians
Glenn Goins 1997 Parliament-Funkadelic
Glenn Frey 1998 The Eagles
Dee Dee Ramone (a.k.a. Glenn) 2002 The Ramones
Glenn Hughes 2016 Deep Purple