Atanasii / Athanasios / Athanasius / Afanasiy / Atanas

Atanasii is a masculine name of Greek origin, derived from the Greek word 'athanasios' (ἀθανάσιος), meaning 'immortal' or 'undying'. The name gained significant popularity through Saint Athanasius of Alexandria, a prominent Christian theologian and Church Father of the 4th century. His staunch defense of Trinitarian doctrine against Arianism made him a revered figure in Eastern Christianity, contributing to the name's widespread use in Orthodox countries.

The name has been consistently used in various forms across Eastern Europe, particularly in Bulgaria, Russia, Ukraine, and other Slavic nations, often associated with religious devotion and historical significance. Its enduring presence reflects its deep roots in Christian tradition and its powerful meaning.