Levi ben Yaaqov ibn al-Tabban (לוי בן יעקב אבן אלתבאן; fl. 12th c.), also known with the Arabic surname Abu l'Fihm, was a Jewish grammarian and poet who lived at Zaragoza. He was the friend and elder contemporary of Yehudah ha-Levi, who styled al-Tabban "King of Song." He is also alluded to by Abraham ibn Ezra in the preface to "Moznayim." Levi ibn al-Tabban was the author of a grammatical work in Arabic, called "Miftaḥ" (The Key), of which only the title has been preserved. Of his piyyutim, a number are extant in the festival liturgies of Tripoli, Avignon, and Algeria, and can usually be easily identified by his customary acrostic, לוי בן יעקב or אני לוי. The spirit of melancholy which pervades his penitential poem in the Tripoli prayer-book (page 63a), "To you, men, I call" (Hebrew: אליכם אישים אקרא), as well as the dirge-like recital of abuse and misery which it contains, shows the poem to have been produced in an age of persecution and tyranny practiced against the Jews. Others of his literary products, which are marked by distress and gloom, also point to such circumstances. The allusions in them are to the devastation of the province of Zaragoza carried on by the Christians under Alfonso Ⅵ, whose triumphant advance Yusuf ibn Tashfin was called from Africa to check.