Encyclopedias, Almanacs, Transcripts, and Maps
- Mariupol
- Markham, Sir Clements Robert
- Markiewicz, Constance Georgine, Countess
- Markowitz, Harry
- Marlboro Music Festival
- Marlborough, Sarah Churchill, duchess of
- Marlinsky, Cossack
- Marly-le-Roi
- Marmaduke, John Sappington
- Marmara, Sea of
- Marmolada
- Marmont, Auguste Frédéric Louis Viesse de
- Marmontel, Jean François
- Marmora
- Marmousets
- Marois, Pauline
- Marozia
- Marquette University
- Marrakesh
- Marriage Ceremonies