M
- Macla
- Majallah-I zhiufizik-I Iran
- Mapping
- Marine and petroleum geology
- Marine biology
- Marine biology research
- Marine biotechnology (New York)
- Marine chemistry
- Marine corps gazette
- Marine drugs Ocean University of China, MDPI
- Marine ecology (Berlín)
- Marine environmental research
- Marine fisheries review National Oceanic and Atmospheric Administration, National Marine Fisheries Service
- Marine geodesy
- Marine geology
- Marine geophysical researches
- Marine georesources & geotechnology
- Marine log
- Marine micropaleontology
- Marine policy
- Marine pollution bulletin
- Marine technology and SNAME news
- Materiales de construcción
- Materials chemistry and physics
- Materials research bulletin
- Meccanica
- Meda : medio ambiente, biodiversidad y desarrollo sostenibles
- Medio ambiente (Sevilla)
- Memoirs of Museum of Victoria
- Memoria IGME
- Memorias de la Real Academia de Ciencias y Artes de Barcelona
- Memorias de la Real Sociedad Española de Historia Natural. 2ª época
- Meteorology and atmospheric physics
- Micropaleontology
- Microscope
- Mineral processing & extractive metallurgy review
- Mineral resources engineering
- Mineralium deposita
- Mineralogia special papers
- Mineralogical magazine
- Mineralogical record, The
- Mineralogy and petrology
- Minerals & metallurgical processing
- Minerals engineering
- Minería y geología
- Mining & minerals
- Mining journal, The
- Miscelánea (Fundación Miguel Lillo)
- Modern geology
- Monografías de la Real Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza
- Monografies del Museu de Ciències Naturals
- Monographs of the Western North American naturalist
- Monthly weather review
- Mountain research and development
- Munibe. Antropologia-Arkeologia
- Munibe. Ciencias naturales