Ammoniusz / Ammonios / Ammonius

Ammoniusz is the Polish form of the ancient Greek name Ammonios (Ἀμμώνιος), which means 'of Amun'. Amun was a major deity in ancient Egyptian mythology, often considered the king of the gods. The name spread throughout the Hellenistic world and later into the Roman Empire, particularly in areas with strong Egyptian cultural influence or where the cult of Amun was present.

The name was borne by several notable figures in antiquity, including philosophers and early Christian martyrs. Its usage in Poland likely stems from the historical and religious connections to the broader European tradition, where names of Greek and Latin origin were often adopted and adapted into local forms.