- Gothic (Medieval)1
- Grammarians1
- Gregorian chants1
- Hadith--Texts1
- Half bindings1
- Harawī, ʻUmar, active 13th century. Hārūnīyah fī al-taṣrīf1
- Headgear--Religious aspects--Islam1
- Hemorrhoids1
- Heraldry1
- Hieron I, Tyrant of Syracuse, -467 B.C. or 466 B.C.1
- Historical geography1
- History--Philosophy1
- Horn (Musical instrument)1
- Horology1
- Horsemanship1
- Horses1
- Hymnals1
- Ibn Barrī, ʻAbd Allāh, 1106-11871
- Ibn Maʻṣūm, ʻAlī ibn Aḥmad, 1642-approximately 1707. Badīʻīyah1
- Ibn Wahbān, ʻAbd al-Wahhāb ibn Aḥmad, -1366 or 1367. Qaʼid al-sharāʼid wa-naẓm al-fawāʼid1