Family name Leonce (Leonce 
, Léonce 
, ليونس 
) , around the world, is quite a common last name. The surname Leonce is characteristic of Saint Lucia, where it is a common surname, Tanzania, where it is quite a rare surname, and Gabon. Measured by absolute frequency, the name is most common in Sub-Saharan Africa, particularly Tanzania, Cameroon, and Ivory Coast. More prevalently, Leonce is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leonce | Ivory Coast, Tanzania, Madagascar, Democratic Republic of the Congo, Cameroon |
| Léonce | Ivory Coast, Madagascar, Benin, Democratic Republic of the Congo, Cameroon |
| ليونس | Iraq |
| Onça | Brazil, Portugal |
| alec leonce British bobsledder, GB (b. 1962) |
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| russell leonce Trinisas and Tobago musician (b. 1978) |
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| g. leonce French artist, active 1860-1875 |
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| adrian leonce politician in Trinidad and Tobago |
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