Greek form tied to Leander, from *leon* 'lion' + *andros* 'man,' meaning lion-like man, also known in Greek legend.
Leandros is the Greek form of Leander, compounded from "leōn" (lion) and "anēr" in its genitive form "andros" (man), yielding the splendid meaning "lion-man" — a name that declares its bearer's nature with the confidence of archaic epithet. It is the fuller, more formally Greek version of the name, preserving the ancestral -os ending that marks it as distinctly Hellenic rather than Latinized, and it has remained in continuous use across the Greek-speaking world from antiquity to the present day. In Greek mythology, Leander was the youth of Abydos who swam the Hellespont each night to visit his beloved Hero, a priestess of Aphrodite in Sestos on the opposite shore — a crossing of roughly a mile in open sea, guided only by the lamp she held.
Their love story, made famous by the Alexandrian poet Musaeus in the 5th century AD, was retold by Ovid in his Heroides and by Christopher Marlowe in his luminous Elizabethan poem Hero and Leander. The story ends in tragedy: a storm extinguishes Hero's lamp, Leander drowns without his guide, and Hero throws herself into the sea upon discovering his body. Lord Byron famously swam the same crossing in 1810 to prove it possible, writing exuberantly about the experience.
Leandros today is primarily at home in Greece, Cyprus, and among Greek diaspora communities worldwide, where it carries the full weight of classical literary culture — a name worn by a mythological hero of absolute romantic devotion, immortalized by some of the greatest poets in the Western tradition. Outside the Greek community, it reads as a name of unusual depth and beauty, its four syllables unfurling like a wave, a name that sounds like the thing it describes.