A
- Abbo of Fleury (c. 950 - 1004)
- Abd al-Jabbar ibn Ahmad (c. 935 - 1025)
- Abd al-Salam al-Jubba'i (died 933)
- Abhinavagupta (fl. c. 975 - 1025)
- Abū Ḥanīfa (c. 699 - 767)
- Abu al-Hudhayl (c. 750 - 840/850)
- Abu Ma'shar al-Balkhi (787 - 886)
- Abu Said Al-Sirafi (died 979)
- Abu Tamman (859 - 937/947)
- Abu Zayd al-Balkhi (c. 850 - 934)
- Aedesius, (d. 355)
- Agrippa the Sceptic, (1st/2nd century)
- Albinus (c. 130)
- Alcinous, (2nd century)
- Alcuin (c. 740 - 804)
- Alexander of Aphrodisias, (2nd century)
- Alhazen (or Ibn al-Haytham), (965 - c. 1040)
- Ali ibn Abbas al-Majusi (died c.982)
- Ambrose, (c. 340-397)
- Abu'l Hasan Muhammad Ibn Yusuf al-'Amiri, (d. 992)
- Ammonius Hermiae, (5th century)
- Ammonius Saccas, (3rd century)
- Anandavardhana, (820-890)
- Apollonius of Tyana, (2-98)
- Apuleius, (c. 123-c. 180)
- Aristides, (fl. 2nd century)
- Arius, (256-336)
- Al-Ash'ari (874-936)
- Asanga, (circa 4th century)
- Aspasius, (c. 100-150)
- Athanasius of Alexandria, (298-373)
- Augustine of Hippo, (354-430)
- Marcus Aurelius, (121-180)
- Avicenna (or Ibn Sina), (980-1037)
Read more about this topic: List Of Philosophers Born In The 1st Through 10th Centuries