Namesakes
Fictional Characters from Books:
1 character
Gilbert Blythe 1908 Anne of Green Gables 
Fictional Characters from Television:
1 character
Gil Grissom (a.k.a. Gilbert) 2000; 2021 CSI: Crime Scene Investigation; CSI: Vegas
Hall-of-Famers:
1 ice hockey
(ice hockey) Gilbert Perreault 1990
Hurricanes and Tropical Storms:
1 hurricane
Hurricane Gilbert 1988
Notable Actors and Actresses:
1 actor/comedian
Gilbert Gottfried 1955-2022
Notable Athletes:
1 ice hockey, 1 soccer
(ice hockey) Gilbert Perreault 1950-
(soccer) Rodolfo Pizarro (a.k.a. Gilbert) 1994-
Olympic Medalists:
2 gold, 1 bronze, 1 silver
(bronze) Leland Merrill (a.k.a. Gilbert) 1948 wrestling
(silver) Gilbert Bozon 1952 swimming - 100 m backstroke
(gold) Gilbert Ford 1956 basketball
(gold) Terry Dischinger (a.k.a. Gilbert) 1960 basketball
Saints:
1 saint
Saint Gilbert of Sempringham 1083-1189