- Franciscus de Pradonerio1
- Frederick I, Holy Roman Emperor, approximately 1123-11901
- Frederick II, Holy Roman Emperor, 1194-12501
- Free will and determinism1
- Free will and determinism--Religious aspects--Christianity1
- Free will and determinism--Religious aspects--Islam1
- French literature1
- Friars1
- Fridolin, Saint1
- Frosini, Giovanni1
- Funeral orations1
- Funeral rites and ceremonies1
- Funeral service--Catholic Church1
- Furniture (components)1
- Future life1
- Future life--Islam1
- Fuṣūl al-iḥkām fī uṣūl al-aḥkām (Marghinānī, ʻAbd al-Raḥīm ibn Abī Bakr)1
- Fuṣūl al-muhimmah fī ʻilm mīrāth al-aʼimmah (Ibn al-Hāʼim, Aḥmad ibn Muḥammad)1
- Fīrūzābādī al-Shīrāzī, Abū Isḥāq Ibrāhīm ibn ʻAlī ibn Yūsuf, approximately 1003-1083. Muhadhdhab1
- Gabriel (Archangel)1