Cognomen Leonard John (Leonard John 
) , worldwide, is an extremely rare last name. The surname Leonard John is habitual in Chile, where it is an extremely rare surname, and the United States. Predominantly, Leonard John is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leonard John | Australia, Spain, Canada, Philippines, Afghanistan |
Yu, Zacher, Soliman, Soliven, Areguin, Agustin, Acuesta, Puylong, Respall, Zabala, De Leon, Lizardo, Tabaday, Sumbillo, Sobreviga, Bertulfo, Grimwood, Torrocha, Santillan, Lamigan, Stanbrook, Orbase, Harvey, Ando, Abaa, Moult, Antes, Bater, Blunt, Guibo, James, Flores, Viray, Searle, Carlos, Caoile, Banaag, Pascua, Pineda, Tabura, Torate, Umali, and Gutierrez