Encyclopedias, Almanacs, Transcripts, and Maps
- Maria Margarethe Winkelmann Kirch
- Mariano di Jacopo Taccola
- Mariano Santo di Barletta
- Mariapovch
- Marie Charlotte Carmichael Stopes
- Marie Curie
- Marie Elizabeth Zakrzewska
- Marie Eugène François Thomas Dubois
- Marie Jean Pierre Flourens
- Marie of Agreda (or Maria de Jesus) (1602-1665)
- Marie-François-Xavier Bichat
- Marie-François-Xavier Bichat and the Tissue Doctrine of General Anatomy
- Marie-Jean-Antoine-Nicolas de Caritat, marquis de Condorcet
- Marijuana
- Marijuana
- Marin Mersenne
- Marin Mersenne
- Marin Mersenne Leads an International Effort to Understand Cycloids
- Marinus of Neapolis
- Marion, Frederick (1892-?)