Namesakes
Notable Athletes:
1 soccer
(soccer) Leônidas da Silva 1913-2004 
Notable Businesspeople:
1 businessperson
Leo Fender (a.k.a. Leonidas) 1909-1991
Notable Military Figures:
1 commander
Leonidas ?-480 BC
Notable Scientists and Inventors:
1 inventor
Leo Fender (a.k.a. Leonidas) 1909-1991
Other Royalty:
1 king
Leonidas I ?-480 BC Sparta