| Ishaq Ibn Hunayn | |
| Birth Date: | 830 |
| Birth Place: | Baghdad, Abbasid Caliphate, now Iraq |
| Death Date: | 910 (aged 80) |
| Death Place: | Baghdad, Abbasid Caliphate, now Iraq |
| Occupation: | Mathematician, Translator |
| Notableworks: | Translation of Euclid's Elements, Translation of Ptolemy's Almagest |
| Years Active: | 850– 910 |
Abū Yaʿqūb Isḥāq ibn Ḥunayn (Arabic: إسحاق بن حنين) (c. 830 Baghdad, – c. 910-1) was an influential Arab physician and translator, known for writing the first biography of physicians in the Arabic language. He is also known for his translations of Euclid's Elements and Ptolemy's Almagest. He is the son of the famous translator Hunayn Ibn Ishaq.