This is a list of articles in medieval philosophy. * Abd al-Karīm ibn Hawāzin al-Qushayri * Abhinavagupta * Abner of Burgos * Abraham bar Hiyya * Abraham ibn Daud * Abū Hayyān al-Tawhīdī * Abu Rayhan Biruni * Abu Yaqub Sijistani * Acharya Hemachandra * Active intellect * Actus et potentia * Actus primus * Actus purus * Adalbertus Ranconis de Ericinio * Adam de Buckfield * Adam de Wodeham * Adam of Łowicz * Adam Parvipontanus * Adam Pulchrae Mulieris * Adelard of Bath * Adi Shankara * Ahmad Sirhindi * Al-Farabi * Al-Ghazali * Al-Jahiz * Al-Kindi * Al-Shahrastani * Al Amiri * Alain de Lille * Albert of Saxony (philosopher) * Albertus Magnus * Alcuin * Alessandro Achillini * Alexander Bonini * Alexander Neckam * Alexander