Samuel ibn Naghrillah (Hebrew: ר׳ שְׁמוּאֵל הַלֵּוִי בֶּן יוֹסֵף הַנָּגִּיד, Sh'muel HaLevi ben Yosef HaNagid; Arabic: أبو إسحاق إسماعيل بن النغريلة ʾAbū ʾIsḥāq ʾIsmāʿīl bin an-Naghrīlah), also known as Samuel HaNagid (Hebrew: שמואל הנגיד, Shmuel HaNagid, lit. Samuel the Prince) and Isma’il ibn Naghrilla (born 993; died 1056), was a medieval Jewish Spanish Talmudic scholar, grammarian, philologist, soldier, merchant, politician, and an influential poet who lived in Iberia at the time of the Moorish rule. His poetry was one area through which he was well known. He was perhaps the most politically influential Jew in Muslim Spain. He was also the Prime Minister of the Muslim state of Granada and battlefield commander of the non-Jewish Granadan army.