| Muḥyī d-Dīn Ibn Abd al-Zahir محيي الدين بن عبد الظاهر | |
| Pseudonym: | Ibn Abd al-Zahir |
| Birth Date: | 1223 |
| Birth Place: | Cairo, Egyptian Mamluk Sultanate (now Egypt) |
| Death Date: | 1293 |
| Death Place: | Cairo, Egyptian Mamluk Sultanate (now Egypt) |
| Resting Place: | Cairo |
| Occupation: | Chancery scribe, Arabic Poet and Historian |
| Language: | Arabic |
| Period: | 7th Islamic century (Mamluk era) |
Ibn Abd al-Zahir (; 1223 - 1293) was an Egyptian chancery scribe, poet and historian during the Mamluk period. Several of his works survive, including three biographies of the early Mamluk sultans Baybars, al-Mansur Qalawun and al-Ashraf Khalil. In addition, a diwan of his poetry survives, as does a collection of letters written by Saladin's vizier al-Qāḍī al-Fāḍil which he compiled, and parts of a geographical work entitled Kitāb al-Rawḍah al-Bahīyah which was used extensively by the later historian Al-Maqrizi for his work "Al-Mawāʿiẓ wa-l-iʾtibār bi-dhikr al-khiṭaṭ wa al-athār." His son Fath al-Din Ibn Abd al-Zahir and grandson Ala al-Din Ibn Abd al-Zahir were also important chancery scribes of the Mamluk period, as was his nephew Shafiʾ ibn ʾAli who also wrote three surviving biographies of sultans Baybars, Qalawun and al-Nasir Muhammad.