This was the name of two biblical men.
Nahor, the father of Terah, who was the father of Abraham (Genesis 11:22-25; Luke 3:34).
Nahor, a son of Terah, and elder brother of Abraham (Genesis 11:26-27; Joshua 24:2, Revised King James Version)—He married Milcah, the daughter of his brother Haran, and remained in the land of his nativity on the east of the river Euphrates at Haran (Genesis 11:27-32). A correspondence was maintained between the family of Abraham in Canaan and the relatives in the old ancestral home at Haran till the time of Jacob. When Jacob fled from Haran all intercourse between the two branches of the family came to an end (Genesis 31:55). His grand-daughter Rebekah became Isaac's wife (24:67).