The Names of God, IV of XVI

Let them praise the name of the Lord,

For His name alone is exalted;

His glory is above the earth and heaven.

Psalm 148:13

Yahweh or Jehovah

(yah-weh)
Lord, Jehovah

Blue Letter Bible

Use in the Bible: In the Old Testament Yahweh occurs 6,519 times. This name is used more than any other name of God. Yahweh is first used in Gen 2:4. 

Yahwehin the Septuagint: kurios — Lord, Master

despotês — Lord, Master, denoting the omnipotence of God (TDNT), despot, absolute ruler 

Meaning and Derivation: Yahweh is the promised name of God. This name of God which (by Jewish tradition) is too holy to voice, is actually spelled "YHWH" without vowels. YHWH is referred to as the Tetragrammaton (which simply means "the four letters"). YHWH comes from the Hebrew letters: Yud, Hay, Vav, Hay. While YHWH is first used in Genesis 2, God did not reveal Himself as YHWH until Exodus 3. The modern spelling as "Yahweh" includes vowels to assist in pronunciation. Many pronounce YHWH as "Yahweh" or "Jehovah." We no longer know for certain the exact pronunciation. During the third century A.D., the Jewish people stopped saying this name in fear of contravening the commandment "Thou shalt not take the name of the LORD thy God in vain" (Exodus 20:7). As a result of this, Adonai is occasionally a substitute for YHWH. The following compound names which start with "YHWH" have been shown using "Jehovah." This is due to the common usage of "Jehovah" in the English of these compound names in the early English translations of the Bible (e.g., the Geneva Bible, the King James Version, etc.). 

Further references of the name Yahweh in the Old Testament:Complete list available here and scroll down.