Former Owner
- Léon Techener1
- Lālajī Śarmaṇ1
- L’Art Ancien1
- M. Haimmiller1
- M. Lee1
- M. Louise Stowell1
- M. Pierre Guarin1
- Madeleine Cosman1
- Mademoiselle de Malberghe1
- Madyājñika Devakṛṣṇa1
- Maffeo Pinelli1
- Maggs Bros Ltd43
- Mahadevabhaṭṭa5
- Mahdī ibn Muṣṭafá al-Ḥusaynī1
- Maheśa1
- Mahārāja Aditya Bahadur Dinha8
- Maksymilian Mielzynski1
- Malachia Ormanian1
- Malvezzi de' Medici1
- Mannheimer Hofbibliothek1