利未 (לֵוִי 标准希伯来语 Levi, Tiberian 希伯来语 Lēwî) 是以色列利未支派的祖先，他是雅各和利亚的第三个儿子。

圣经描写利未性情暴烈，当示剑玷污了利未的妹妹底拿，示剑人以此胁迫求婚，利未和哥哥西缅表面上同意了婚事，条件是所有的男丁都受割礼。示剑人同意了。但第三天，西缅和利未趁着众人正在疼痛的时候，率领部落把示剑一切男丁都杀了(创世纪34章)，其后把底拿从示剑家里带出来走了。

他曾与西缅国参与谋害其同父异母弟弟约瑟。

雅各临终前的祝福 (创世纪49:5):西缅和利未是弟兄；他们的刀剑是强暴的器械。 我的荣耀阿，不要与他们联合聚集；因为他们趁怒杀害人命，任意砍断牛腿大筋。

Levi (or Levy) (/ˈliːvaɪ/, Hebrew:לֵּוִי‎; Standard Levy Tiberian Lēwî; literally joining) was, according to the Book of Genesis, the third son of Jacob and Leah, and the founder of the Israelite Tribe of Levi (the Levites). Certain religious and political functions were reserved for the Levites. Some scholars suspect that "levi" was originally a general term for a priest with no connection to ancestry, and that it was only later that the existence of a tribe named Levi became assumed.