Namesakes
Bishops of Rome and the Popes:
16 popes, 2 antipopes
Gregory I the Great 590-604 
Gregory II 715-731
Gregory III 731-741
Gregory IV 827-844
Gregory V 996-999
Gregory 1012
Gregory VI 1045-1046
Gregory VII 1073-1085
Gregory 1118-1121
Gregory VIII 1187
Gregory IX 1227-1241
Gregory X 1271-1276
Gregory XI 1370-1378
Gregory XII 1406-1415
Gregory XIII 1572-1585
Gregory XIV 1590-1591
Gregory XV 1621-1623
Gregory XVI 1831-1846
Fictional Characters from Television:
7 characters
Greg Brady (a.k.a. Gregory) 1969; 1990 The Brady Bunch; The Bradys
Greg Medavoy (a.k.a. Gregory) 1993 NYPD Blue
Greg Pratt (a.k.a. Gregory) 1994 ER
Greg Montgomery (a.k.a. Gregory) 1997 Dharma & Greg
David Phillips (a.k.a. Gregory) 2000 CSI: Crime Scene Investigation
Greg Sanders (a.k.a. Gregory) 2000 CSI: Crime Scene Investigation
Gregory House 2004 House
Harry Potter Characters:
2 characters
Gregory Goyle Jr
Gregory Goyle Sr
Notable Actors and Actresses:
7 actors
Gregory Peck 1916-2003
Gregory Hines 1946-2003
Greg Wise (a.k.a. Gregory) 1966-
Jonathan Brandis (a.k.a. Gregory) 1976-2003
Gregory Smith 1983-
Ethan Peck (a.k.a. Gregory) 1986-
Shad "Bow Wow" Moss (a.k.a. Gregory) 1987-
Notable Artists:
1 fashion designer
Percy Irausquin (a.k.a. Gregory) 1969-2008
Notable Athletes:
3 rugby, 2 soccer, 1 football, 1 tennis
(tennis) Greg Rusedski (a.k.a. Gregory) 1973-
(rugby) Kane Thompson (a.k.a. Gregory) 1982-
(rugby) Greg Holmes (a.k.a. Gregory) 1983-
(soccer) Medhi Lacen (a.k.a. Gregory) 1984-
(soccer) Gregory van der Wiel 1988-
(football) Greg Hardy (a.k.a. Gregory) 1988-
(rugby) Greg Peterson (a.k.a. Gregory) 1991-
Notable Musicians:
1 singer, 1 singer/musician
Gregg Allman (a.k.a. Gregory) 1947-2017
Shad "Bow Wow" Moss (a.k.a. Gregory) 1987- hip hop
Notable Philosophers and Thinkers:
1 historian
Gregory of Tours c. 538-594
Olympic Medalists:
9 silver, 3 bronze, 3 gold, 1 bronze/silver, 1 silver/gold
(gold) Greg Bell (a.k.a. Gregory) 1956 long jump
(silver) Gregory Buckingham 1968 swimming - 200 m medley
(bronze/silver) Gregory Rogers 1968 swimming - 4x100 m freestyle relay; swimming - 4x200 m freestyle relay
(bronze) Gregory Brough 1968 swimming - 1500 m freestyle
(bronze) Brian Job (a.k.a. Gregory) 1968 swimming - 200 m breaststroke
(bronze) Peter Asch (a.k.a. Gregory) 1972 water polo
(silver) Gregory Joy 1976 high jump
(gold) Phil Hubbard (a.k.a. Gregory) 1976 basketball
(silver) Gregory Foster 1984 110 m hurdles
(silver) Gregory Fasala 1984 swimming - 4x100 m freestyle relay
(silver) Gregory Meghoo 1984 4x100 m relay
(silver) Greg Boyer (a.k.a. Gregory) 1988 water polo
(silver/gold) Gregory Louganis 1976; 1984; 1988 diving - platform; diving - springboard
(silver) Gregory Burgess 1992 swimming - 200 m medley
(silver) Grégory Mallet 2008; 2012 swimming
(silver) Grégory Baugé 2008; 2012 cycling - track
(gold) Greg Rutherford (a.k.a. Gregory) 2012 long jump
Oscar Award Winners:
1 actor
(actor) Gregory Peck 1962 To Kill a Mockingbird
Saints:
17 saints, 3 blessed
Saint Gregory Thaumaturgus ?-270
Saint Gregory of Nazianzus 329-389
Saint Gregory the Enlightener ?-330
Saint Gregory of Nyssa 335-395
Saint Gregory of Tours c. 538-594
Saint Gregory ?-539
Saint Gregory the Great c. 540-604
Saint Gregory ?-603
Saint Gregory II 669-731
Saint Gregory of Utrecht 703-776
Saint Gregory III ?-741
Saint Grigol of Khandzta (a.k.a. Gregory) 759-861
Saint Gregory VII c. 1020-1085
Saint Gregory ?-1044
Blessed Gregory X 1210-1276
Blessed Gregorio of Verucchio (a.k.a. Gregory) 1225-1343
Saint Gregory of Tragurio ?-1369
Saint Gregorio Barbarigo (a.k.a. Gregory) 1625-1697
Blessed Hryhoriy Lakota (a.k.a. Gregory) 1883-1950
Saint Gregorio Grassi (a.k.a. Gregory) ?-1900
Shakespearian Characters:
1 character
Gregory Romeo and Juliet