- Montserrat (Abbey)1
- Montúfar, Alonso de, active 1512-15701
- Morales family1
- Morales, Andrés de, active 1683-16851
- Morales, Francisco de, active 1683-16851
- Morales, Nicolás de, active 1683-16851
- More, Thomas, Saint, 1478-15351
- Moriscos1
- Morocco--Casablanca1
- Morocco--Meknès1
- Morocco--Salé1
- Morso family1
- Mosteiro de S. Mónica (Lisbon, Portugal)1
- Movement (Philosophy)1
- Mucini, Domenico1
- Mughnī al-labīb ʻan kutub al-aʻārīb (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Mukhtaṣar al-Manār (Ibn Ḥabīb, Ṭāhir ibn al-Ḥasan)1
- Mukhtaṣar al-Qudūrī (Qudūrī, Aḥmad ibn Muḥammad)1
- Mukhtār lil-fatwá (Mawṣilī, ʻAbd Allāh ibn Maḥmūd)1
- Murad IV, Sultan of the Turks, 1612-16401