Javan

(1.) The fourth "son" of Japheth (Gen 10:2), whose descendants settled in Greece, i.e., Ionia, which bears the name of Javan in Hebrew. Alexander the Great is called the "king of Javan" [rendered "Grecia," (Dan 8:21; 10:20); comp. (Dan 11:2; Zech 9:13)]. This word was universally used by the nations of the East as the generic name of the Greek race.

(2.) A town or district of Arabia Felix, from which the Syrians obtained iron, cassia, and calamus (Ezek 27:19).

EBD - Easton's Bible Dictionary