Title
- Regula monachorum1
- Religiosorum status triplex1
- Republic1
- Responsa1
- Revelations1
- Rich man and Lazarus1
- Risālah fī al-hayʼah al-falakīyah1
- Risālah fī al-waqf1
- Risālah fī masʼalat al-kafāʼah1
- Risālah fī ʻilm al-hayʼah1
- Risālah-i aflākīyah dar tarkīb-i filizzāt-i sabʻah1
- Roman ceremonials1
- Roman de Mandevie1
- Rosarium1
- Rozier des guerres1
- Rubaiyat1
- Rubricae1
- Rule of Saint Benedict1
- Sacramentary1
- Saint Patrick's Purgatory1