Namesakes
Hall-of-Famers:
1 baseball, 1 basketball
(baseball) Buck Leonard 1972 
(basketball) Bobby Leonard 2014
Notable Actors and Entertainers:
1 actor
Robert Sean Leonard 1969-
Notable Athletes:
1 boxing
(boxing) "Sugar" Ray Leonard 1956-
Notable Musicians:
1 musician
Tchami (a.k.a. Léonard) 1985-
Olympic Medalists:
1 gold, 1 silver
(gold) "Sugar" Ray Leonard 1976 boxing
(silver) Silvio Leonard Sarría 1980 100 m