- Bulgaria--Plovdiv1
- Bulgaria--Sofia1
- Bāb al-Ḥādī ʻashar (Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf)1
- Bābā Afz̤al, active 13th century. Jāvidānʹnāmah1
- Bāʻūnīyah, ʻĀʼishah bint Yūsuf, -1516 or 1517. Badīʻīyah1
- Bāʻūnīyah, ʻĀʼishah bint Yūsuf, -1516 or 1517. Fatḥ al-mubīn fī madḥ al-Amīn1
- Būstān (Saʻdī)1
- Cairo Genizah1
- Calendar, Chinese1
- Caliphate1
- Calligraphy, Arabic1
- Callistus II, Pope, -11241
- Campoy family1
- Castile (Kingdom). Cortes1
- Castilla y León (Spain). Cortes1
- Catherine, of Alexandria, Saint1
- Catholic Church. Province of Santiago de Compostela (Spain)1
- Catholics1
- Censored works1
- Charitable uses, trusts, and foundations (Islamic law)1