Encyclopedias, Almanacs, Transcripts, and Maps
- Medical College of Pennsylvania
- Medici, Alessandro de'
- Medici, Cosimo II de'
- Medici, Cosimo III de'
- Medici, Francesco de'
- Medici, Gian Gastone de'
- Medici, Giuliano de'
- Medici, Giulio de'
- Medicine Bow Mountains
- medieval philosophy
- Medina del Campo
- Medina Sidonia, Alonso Pérez de Guzmán, duque de
- Medinipur
- Mediolanum
- Mediterranean fruit fly
- Medvedev, Dmitri Anatolyevich
- Medveditsa
- Meer, Jan van der
- megachurch
- Megaclite