| A Hindu-Muslim synthesis | Sikand, Y. | English | Bibliography |
| A Historical and Regional Atlas of the Arabic World: Map and Chronological Survey | Reichert, Rolf. | English | Bibliography |
| A History of Egypt in the Middle Ages | Lane-Poole, Stanley. | English | Bibliography |
| A History of Islamic Philosophy | Fakhry, Majid. | English | Bibliography |
| A History of Medieval Islam | Saunders, J. J. | English | Bibliography |
| A History of Medieval Islam - The Turkish Irruption | Saunders, J. J. | English | Full Text |
| A History of the Ismaili Community in Tanzania. | Walji, Shirin R. A. | English | Bibliography |
| H. H. The Aga Khan | Greenwall, Harry. | English | Bibliography |
| H.H. Prince Aga Khan: Guide, Philosopher and Friend of the World of Islam | Malick, Qayyum. | English | Bibliography |
| Haft Bab' or Seven Chapters or Seven Chapters, by Abu Ishaq Quhistani | Ivanow, Wladimir. | English | Bibliography |
| Haji Bibi Case Against Aga Khan III | Russel, Justice. | English | Bibliography |
| Hamdan Karmat | Madelung, Wilferd. | English | French | Bibliography |
| Hamza b. 'Ali | Madelung, Wilferd. | English | French | Bibliography |
| Hashishiyya | Lewis, Bernard. | English | French | Bibliography |
| Hassan bin Sabbah | Muscati, Jawad. | English | Bibliography |
| Hassan ibn Sabbah: mystificateur ou mystifié. | Finné, Jacques. | French | Bibliography |
| Hassan-e Sabbah | Keshavarz, Karim. | English | Bibliography |
| Hassan-i Sabbah and the Assassins | Lockhart, L. | English | Bibliography |
| Hassan-i-Sabbah | Hodgson, Marshall G. S. | English | French | Bibliography |
| Hatim b. Ibrahim | Madelung, Wilferd. | English | Bibliography |
| Hazara Integration into the Afghan Nation. | Cantfield, Robert L. | English | Bibliography |
| Health | AKHS | | Full Text |
| Hebraische und Syrische Zitate in Ismailitischen Schriften | Kraus, Paul . | German | Bibliography |
| Henri Corbin (1903-1978) | Fouchecour, Ch. H. de. | English | Bibliography |
| Herméneutique spirituelle comparée: 1) Swedenborg 2) Gnose ismaélienne | Corbin, Henri. | French | Bibliography |
| Heterodox Ismailism at the Time of Al-Muizz | Stern, S. M. | English | Bibliography |
| Hind | Nizami, K. A. | English | French | Bibliography |
| Hindouisme et soufisme | Shayegan, Daryush. | French | Bibliography |
| His Highness The Aga Khan | Nehru, J. | English | Bibliography |
| Histoire de l'Afrique | Abu-Dinar, Ibn. | French | Bibliography |
| Histoire de l'islam: Doctrines et fondements | Steigerwald, Diana | French | Full Text |
| Histoire de l'Ordre des Assassins | Hammer-Purgstall, Joseph von. | French | Bibliography |
| Histoire de la dynastie des Hamdanides de Jazira et de Syrie. | Canard, Marius. | French | Bibliography |
| Histoire de la philosophie islamique | Corbin, Henri. | French | Bibliography |
| Histoire de la philosophie islamique - 2e partie. | Corbin, Henri. | French | Bibliography |
| Histoire des croyances et des idées religieuses | El-Baquri: See Baquri. | French | Bibliography |
| Histoire des doctrines secrètes | Marques-Rivière, Jean. | French | Bibliography |
| Histoire des Druses, peuple du Liban, formé par une colonie de Français | Sprengling, M. | French | Bibliography |
| Histoire des Ismaéliens et des Seldjoukides | Defrémery, G. | French | Bibliography |
| Histoire des Ismaéliens: de l'avènement de l'Islam à la fin de la période fatimide | Mawjee, Nargis. | French | Bibliography |
| Histoire des Mongols de la Perse | Rashid ad-Din. | French | Bibliography |
| Histoire des Musulmans d'Espagne | Dozy, R. | French | Bibliography |
| Histoire d’Al-Azhar: sous les Fatimides | Ghoniem, Ahmed | French | Bibliography |
| Histoire et religion des Nosairis | Dussaud, René. | French | Bibliography |
| History in Ginans | Aziz, Abu Aly A. | | Full Text |
| History in Ginans. | Alibhai Aziz, Abualy. | English | Full Text |
| History of Philosophy In Islam | Boer, T. J. de. | English | Bibliography |
| History of the Assassins | Hammer-Purgstall, Joseph von. | English | Bibliography |
| History of the Assassins | Oswald, Charles Wood. | English | Bibliography |
| History of the Fatimid's States | Hassan, H. I. | English | Bibliography |
| History of the Ismaili Da'wa and its Literature during the Last Phase of the Fatimid Empire | Hamdani, Husayn F. al-. | English | Bibliography |
| History of the Ismailis | Picklay, A. G. | English | Bibliography |
| History Of The Ismailis | Tajddin Sadiq Ali, Mumtaz-Ali | | Full Text |
| History of the Order of Assassins | Franzius, Enno. | English | Bibliography |
| History of Titles Dar-es-Salaam | Alibhai Aziz, Abualy. | English | Full Text |
| History, Philosophy and Doctrine of the Ismailis: A Comprehensive Bibliography. | Makan, Nizar. | English | Bibliography |
| Horse-Racing in Islam | Tajddin, Mumtaz Ali | English | Full Text |
| How Did the Early Shias Become Sectarian | Hodgson, Marshall G. S. | English | Bibliography |
| Hudjdja | Hodgson, Marshall G. S. | English | Bibliography |
| Hudjdja | Hodgson, Marshall G. S. | English | Bibliography |
| Huitième centenaire d'Alamût | Corbin, Henri. | French | Bibliography |
| The Hazaras and the British in the Nineteenth Century | Jones, Sarah. | English | Bibliography |
| The Heroes of Surat | Mohamed, Al-Waez Sultanali | English | Full Text |
| The Heterodoxies of the Shi'ites in the Presentation of Ibn Hazm | Friedlander, J. | English | Bibliography |
| The Hidden Imams of the Ismailis | Makarem, Sami Nasib. | English | Full Text |
| The Hillmen of the Upper Panjab the Wakhanis and the Ishkashimis | Bebrinsky, A. A. | English | Bibliography |
| The History of India as Told by its Own Historians | El-Sioufi | English | Bibliography |
| The History of the Dawoodi Bohras | Contractor, Norman. | English | Bibliography |
| The History of the Dirhem in Egypt from the Fatimid Conquest until the Collapse of the Mamluk Empire (358-922 A.H./968-1517 A.D.) | Balog, B. | English | Bibliography |
| The History of the World-Conqueror | Boyle, J. A. | English | Bibliography |