Does the Hebrew language have y h w?

The Hebrew language doesn't use the letters Y H W directly to spell out the name of God. Instead, it uses the Tetragrammaton, יהוה (YHWH), which is generally transliterated as Yahweh or Jehovah (depending on vocalization theories). While the consonants are present, the vowels are not originally written in the biblical text and were added later by Masoretes using different systems. So the answer is nuanced: the *consonants* are present in the Hebrew alphabet, but not in the form Y H W as a representation of the divine name.