Jax is a ♂ male name.
Jax is a diminutive of the first name Jackson or Jaxon, which derived from an English surname. Besides, Jax is a variant of Jack.
Jax means “Jack’s son” or “son of Jack” (from Jackson or Jaxon) and “Yahweh is gracious”, “may God protect” and “holder of the heel” (from Jack).