In the Hebrew Bible, a nazirite or nazarite, (in Hebrew: נזיר, nazir), refers to one who voluntarily took a vow described in . "Nazarite" comes from the Hebrew word nazir meaning "consecrated" or "separated". This vow required the person to:

• Abstain from wine, wine vinegar, grapes, raisins, intoxicating liquors, vinegar made from such substances, and eating or drinking any substance that contains any trace of grapes.
• Refrain from cutting the hair on one's head; but to allow the locks of the head's hair to grow.
• Not to become ritually impure by contact with corpses or graves, even those of family members.