Leonidus is a distinct and unique given name of Greek origin, derived from the Greek 'leōn' meaning 'lion', and 'eidēs' which translates to 'like'. This moniker suggests strength, courage, and majesty, evoking images of noble lions in the wild. It was notably borne by Leonidas I, the king of Sparta who led his forces against the Persian army at the Battle of Thermopylae, immortalizing this name in history as a symbol of bravery and defiance.
The name Leonidus experienced a significant peak in popularity between 2007 and 2018, with the highest number of births occurring in 2018 (15 births). However, there has been a notable decline since then, with fewer than 10 births recorded each year from 2019 to 2023. Overall, there have been 151 babies named Leonidus born between 2007 and 2023.