Abigail (Hebrew: אֲבִיגַיִל‎, Modern: ʾAvīgayīl, Tiberian: ʾAḇīḡayīl) was an Israelite woman in the Hebrew Bible married to Nabal; she married the future King David after Nabal's death (1 Samuel 25). Abigail was David's second wife, after Saul and Ahinoam's daughter, Michal, whom Saul later married to Palti, son of Laish, when David went into hiding.

Abigail became the mother of one of David's sons, who is listed in the Book of Chronicles under the name Daniel, in the Masoretic Text of the Books of Samuel as Chileab, and in the Septuagint text of 2 Samuel 3:3 as Δαλουια, Dalouia. Her name is spelled Abigal in 2 Samuel 17:25 in the American Standard Version.