He was regarded as an ancestor to the Ionians, but is not thought of as a god.

Xanthe

xanthippe

xanthippus

xanthus

xenea

xenia

xenius & xenia

xenoceia

xenodamus

xenodice

xuthus

Xuthus, better known has Greek Goddess Hellen's son, but he was not really a god just a mythical ancestor of the Achaeans and Ionians. There was no Greek God or Goddess that's name starts with an X really.

In Greek mythology, Hellen is considered the mythical ancestor of all Greeks because he was believed to be the progenitor of the Hellenic people through his three sons, Dorus, Xuthus, and Aeolus. These sons were the founders of the major tribes that would later form the Greek nation. Over time, stories and legends reinforced this belief, establishing Hellen as the common ancestor from whom all Greeks descended.