| Leonard Adleman | Leonard Adleman |
| Leonard Bernstein | Leonard Bernstein |
| Leonard Bloomfield | Leonard Bloomfield |
| Leonard Cockayne | Leonard Cockayne |
| Leonard Cohen | Leonard Cohen |
| Leonard Maltin | Leonard Maltin |
| Leonard McCoy | Leonard McCoy |
| Leonard Nimoy | Leonard Nimoy |
| Leonard Orban | Leonard Orban |
| Leonard Peltier | Leonard Peltier |
| Leonard Percival Howell | Leonard Howell |
| Leonard Savage | Leonard Jimmie Savage |
| Leonard Slatkin | Leonard Slatkin |
| Leonard Woolf | Leonard Woolf |
| Leonard Woolley | Leonard Woolley |
| Leonardo | Leonardo |
| Leonardo Bruni | Leonardo Bruni |
| Leonardo Ciampa | Leonardo Ciampa |
| Leonardo de Vitor Santiago | Leonardo Santiago |
| Leonardo DiCaprio | Leonardo DiCaprio |
| Leonardo Duque | Leonardo Duque |
| Leonardo José Talamonti | Leonardo Talamonti |
| Leonardo Loredano | Leonardo Loredan |
| Leonardo Nascimento de Araujo | Leonardo Araújo |
| Leonardo Pisano | Fibonacci |
| Leonardo Rodríguez | Leonardo Rodríguez |
| Leonardo Vinci | Leonardo Vinci |
| Leonardus Lessius | Leonardus Lessius |
| Leonberg | Leonberger |
| Leonding | Leonding |
| Leone | Sierra Leonean leone |
| Leone Allacci | Leo Allatius |
| Leone Battista Alberti | Leone Battista Alberti |
| Leonel Fernández | Leonel Fernández |
| Leonel Sánchez | Leonel Sánchez |
| Leonetto Cappiello | Leonetto Cappiello |
| Leonhard Euler | Leonhard Euler |
| Leonhard Rauwolf | Leonhard Rauwolf |
| Leonhard Stock | Leonhard Stock |
| Leonhart Fuchs | Leonhart Fuchs |
| Leonid Buryak | Leonid Buryak |
| Leonid Hurwicz | Leonid Hurwicz |
| Leonid Iovich Gaidai | Leonid Gaidai |
| Leonid Ivanovitch Kubbel | Leonid Kubbel |
| Leonid Kantorovich | Leonid Kantorovich |
| Leonid Kizim | Leonid Kizim |
