Alexander (/ˈæləɡzˈændər/, /ˈæləɡzˈɑːndər/) is a common male first name, and less common surname derived from the Greek "Αλέξανδρος" (Aléxandros). The most famous is Alexander the Great, who created one of the largest empires in ancient history.
Etymology
The name Alexander is derived from the Greek Ἀλέξανδρος (Aléxandros), meaning "Defender of the people" or "Defending men" and also, "Protector of men", a compound of the verb ἀλέξειν alexein, "to ward off, to avert, to defend" and the noun ἀνήρ anēr, "man" ( ἀνδρός andros). It is an example of the widespread motif of Greek (or Indo-European more generally) names expressing "battle-prowess", in this case the ability to withstand or push back an enemy battle line.
The earliest attested form of the name is the Mycenaean Greek feminine anthroponym
[ Source: Wikipedia ]