First recorded as a given name of Latvians in 1695. Ultimately from Ancient Greek λέων (léōn, “lion”). Cognate to English Leo and Leon.
- A male given name.
- Klāvs Siliņš: Latviesu personvārdu vārdnīca. Riga "Zinātne" 1990, →ISBN
-  Population Register of Latvia: Leons was the only given name of 1434 persons in Latvia on May 21st 2010.