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 (middle name 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 (middle name 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 (middle name 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 (middle name Glenn) 2002 The Ramones
Glenn Hughes 2016 Deep Purple