Rebekah or Rivka (רִבְקָה "Noose", Standard Hebrew Rivqa, Tiberian Hebrew Riḇqāh) was a biblical matriarch and the wife of Isaac. Her story is told in the Book of Genesis.

Rebekah was the mother of the twins Esau and Jacob, of whom she favored the latter. She was the granddaughter of Abraham's brother Nahor. Abraham was the father of Isaac.

She is the sister of Laban in Padan Aram in Mesopotamia. Abraham sends his chief servant there to seek a non-Canaanite wife for his son. Impressed by Rebekah's kindness and family background, he chooses her and brings her back to be Isaac's wife. When she first saw Isaac, she was so much in love that she fell off her camel.

She is burried in the Cave of the Patriarchs in Hebron.

A modern English spelling of the name is Rebecca. The diminutive is Reba, Becca, Becka, Beckie, Becki, or Becky.