Amīn al-Dīn Abu ʾl-Ghanāʾim Muslim ibn Maḥmūd al-Shayzarī give his full name as Amīn al-Dīn Abu ʾl-Ghan̄aʾim Muslim ibn Abi ʾl-Thanāʾ Maḥmūd ibn Sanad al-Dawla Jamāl al-Mulk Abi ʾl-Faḍāʾil Niʿma ibn Sanad al-Dawla Abi ʾl-ʿAṭāʾ Arslān (Raslān) ibn Yaḥyā. , gives his laqab as Amīn al-Dawla. ( 1201–1225) was a Syrian-born Yemeni adīb and astronomer.

Al-Shayzarī was born in Damascus into prominent family of mamālīk in the service of Usāma ibn Munqidh, lord of Shayzar in Syria. His father was still living in 1169. Al-Shayzarī later moved to the court of al-Muʿizz Ismāʿīl ibn Ṭughtigīn (), Ayyubid governor of Yemen. He dedicated to him an anthology of adab in twenty-five chapters, ʿAjāʾib al-ashʿār wa-gharāʾib al-akhbār, of which a single medieval manuscript is preserved, dated 1291 and now in Peshawar.; ; . In 1225, he composed another anthology in sixteen books, Jamharat al-Islām dhāt al-nathr wa ʾl-niẓām, for the Ayyubid governor al-Masʿūd Ṣalāḥ al-Dīn Yūsuf ().; . He included poems by himself and his son Aḥmad. The Jamharat is preserved in a single manuscript dated 1298 and now in Leiden., citing and the facsimile edition of . A second work dedicated to al-Masʿūd is the ʿĀdāt al-nujūm, known from a manuscript copied in 1665 or 1666 and now in Ṣanʿāʾ. It is an astronomical almanac similar to the Calendar of Córdoba. It was not compiled for use in Yemen.

Al-Shayzarī's date of death is unknown.

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