Leonas is a Lithuanian masculine given name and surname; often a diminutive of Leonardas, and a Lithuanianized form of "Leon". Leonas (Ancient Greek: Λεωνᾶς) was also a Greek and a Latin name. Surname. Petras Leonas (1864–1938), Lithuanian attorney and politician. Silvestras Leonas (1894–1959), Lithuanian military officer and judge. Given name. Leonas, a Greek rhetorician and sophist. Mentor of the philosopher Proclus. Leonas Alesionka (born 1949), Lithuanian politician. Leonas Apšega (born 1940), Lithuanian politician. Leonas Baltrūnas (1914–1993), Lithuanian basketball player and coach.
https://en.wikipedia.org/wiki/Leonas