Encyclopedias, Almanacs, Transcripts, and Maps
- Macrina, Ss.
- Macrobius
- Macrobius, Ambrosius°
- Macrory, Joseph
- Madaba, Medeba
- Madagascar Plan
- Madagascar, The Catholic Church in
- Madani, ?Abbasi (1931– )
- Madaura, Martyrs of
- Madeleva, Mary, Sister
- Madhhab
- Madhyamaka School
- Madison, James°
- Madmūn ben Japheth ben Bundār
- Madon
- Madruzzo
- Maduro, Ricardo
- Maes, Andreas°
- Maes, Boniface
- Maes, Camillus Paul