Namesakes
Bulgarian Presidents and Prime Ministers:
1 prime minister
(prime minister) Leonid Sobolev 1882-1883 
Nobel Prize Winners:
2 economics
(economics) Leonid Kantorovich 1975
(economics) Leonid Hurwicz 2007
Notable Actors and Entertainers:
1 actor
Leonid Kulagin 1940-
Notable Filmmakers:
1 director/screenwriter
Leonid Bykov 1928-1979
Notable Philosophers and Thinkers:
1 economist
Leonid Kantorovich 1912-1986
Olympic Medalists:
3 silver, 1 bronze, 1 bronze/silver/gold, 1 gold, 1 silver/bronze
(silver) Leonid Shcherbakov 1952 triple jump
(gold) Leonid Spirin 1956 20 km walk
(silver) Leonid Bartenyev 1956; 1960 4x100 m relay
(silver/bronze) Leonid Ilyichov 1968 swimming - 4x100 m freestyle relay; swimming - 4x100 m medley relay; swimming - 4x200 m freestyle relay
(bronze/silver/gold) Leonid Osipov 1964; 1968; 1972 water polo
(silver) Leonid Lytvynenko 1972 decathlon
(bronze) Leo Komarov 2014 ice hockey
Other Leaders:
1 general secretary, 1 president, 1 prime minister/president
General Secretary Leonid Brezhnev 1964-1982 Soviet Union
President Leonid Kravchuk 1991-1994 Ukraine
Prime Minister/President Leonid Kuchma 1992-1993; 1994-2005 Ukraine
Saints:
1 blessed
Blessed Leonid Feodorov 1879-1935