- Abu Bakr Muhammad ibn Zakariya al-Razi (854–925 CE), also known by his Latinized name Rhazes or Rasis, physician and philosopher.
- Muhammad ibn Ya’qub al-Kulayni Al-Razi (born 250 AH/864 CE), compiler of hadith, born in a village named Kulayn or Kulin in Iran.
- Abu Zur’a al-Razi (died 878), Sunni hadith scholar.
- Abu Hatim Muhammad ibn Idris al-Razi (811–890), Sunni hadith scholar.
- Abu Hatim Ahmad ibn Hamdan al-Razi (died c. 934), Isma’ili theologian and philosopher.
- Amin Razi, 16th-century Persian geographer.
- Fakhr al-Din al-Razi (c. 1150 – 1210), Persian theologian and philosopher.
- Najmeddin Razi, 13th-century Persian Sufi.