Also known as the Tetragrammaton, this is one of the Hebrew names for God. The Latinized version is rendered Jehovah approximately.
Literally means, "I AM."
It should be noted that God declared Himself to Moses using this name, and Jesus also declared Himself to the Jewish officials using this name.
"And God said to Moses, 'I AM WHO I AM.' And He said, 'Thus you shall say to the children of Israel, "I AM has sent me to you."' Moreover God said to Moses, 'Thus you shall say to the children of Israel: "The LORD God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you. This is My name forever, and this is My memorial to all generations."'"
- Exodus 3:14-15
"Jesus said to them, 'Most assuredly, I say to you, before Abraham was, I AM.'"
- John 8:58
Most Hebrew scholars give "Yahweh" as being the correct pronunciation of this name.
"Jehovah" is a pronunciation that has evolved as a result of time, multiple translations from one language to another, and an ignorance of the Masorites inserting vowels for alternate, substitute titles.
YHWH/YHVH = Yahweh.
"Yahweh" is not a title, rather it is the creator's personal name. It means "I AM WHO I AM" and is His name FOREVER (Exodus 3:14-15); it does NOT mean "Lord" ("Baal" = "Lord") and "God" is the exact pronunciation of G-a-D, the false deity spoken of in ISAIAH 65:11 sometimes translated as "that Troop", "Fortune" or "Fate".
Why not simply call the creator by His actual name?