Isaac ( /ˈaɪzək/;Hebrew: יִצְחָק, Modern Yitsẖak Tiberian Yiṣḥāq, ISO 259-3 Yiçḥaq, "he will laugh"; Yiddish: יצחק, Yitskhok; Ancient Greek: Ἰσαάκ, Isaak; Latin: Isaac; Arabic: إسحاق‎ or Arabic: إسحٰق‎ʼIsḥāq) as described in the Hebrew Bible, was the only son Abraham had with his wife Sarah, and was the father of Jacob and Esau. Isaac was one of the three patriarchs of the Israelites. According to the Book of Genesis, Abraham was 100 years old when Isaac was born, and Sarah was beyond childbearing years.

Isaac was the only biblical patriarch whose name was not changed, and the only one who did not leave Canaan. Compared to those of Abraham and Jacob, Isaac's story relates fewer incidents of his life. He died when he was 180 years old, making him the longest-lived patriarch.

The anglicized name Isaac is a transliteration of the Hebrew term Yiṣḥāq which literally means "He laughs/will laugh."Ugaritic texts dating from the 13th century BCE refer to the benevolent smile of the Canaanite deity El. Genesis, however, ascribes the laughter to Isaac's parents, Abraham and Sarah, rather than El. According to the biblical narrative, Abraham fell on his face and laughed when Elohim imparted the news of their son's eventual birth. He laughed because Sarah was past the age of childbearing; both she and Abraham were advanced in age. Later, when Sarah overheard three messengers of the Lord renew the promise, she laughed inwardly for the same reason. Sarah denied laughing when Elohim questioned Abraham about it.

Juan Isaac Cuenca López (born 27 April 1991) is a Spanish professional footballer who plays for FC Barcelona as a forward or winger.

Born in Reus, Tarragona, Catalonia, Cuenca joined FC Barcelona's La Masia in 2003, aged just 12. Halfway through his third youth year, however, he returned home and joined local CF Reus Deportiu.

Cuenca finished his formation with CF Damm and Barcelona, rejoining the latter in 2009. He made his senior debuts in the 2010–11 season, being loaned to another Catalonia club, CE Sabadell FC in the third division. He made an immediate impact, starting in 24 of his appearances and totalling 2,288 minutes as the Arlequinats returned to the second division after an 18-year absence.

In June 2011, Cuenca returned to Barcelona and joined its B team, alongside Martí Riverola. Shortly after, he was called by first-team manager Josep Guardiola to the pre-season, and made his debut on 23 July against HNK Hajduk Split.

Cuenca made his official debut for Barça B on 4 September 2011, playing the last 29 minutes in a 4–0 away win against FC Cartagena, and scoring the last goal of the match. On 19 October, he made his first official appearance for the main squad, replacing David Villa in the dying minutes of a 2–0 home success against FC Viktoria Plzeň, for the season's UEFA Champions League.