Last name Leondis (Leondis 
) , in the world, is a rare surname. The last name Leondis is characteristic of Denmark, where it is a rare surname, Australia, and Greece, where it is a very rare surname. In absolute terms, it is commonest in the United States, Australia, and Philippines. Much less frequently, Leondis is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Leondis | Philippines, Australia, United States, Denmark, Brazil |
| tony leondis American film director and screenwriter, US (b. 1972) |
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| steve leondis college basketball player (1980–1983) Yale |
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| joe leondis college basketball player (1975–1976) Harvard |
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