- Machain-Castillo María Luisa
- Machain-Castillo María Luisa
- Madre David
- Mahe Gil
- Majule Amos
- Maldonado Antonio
- Malet Bruno
- Mallela Jennie
- Mamo Briony
- Managave Shreyas
- Manalo K.
- Manay Roger
- Mandeng-Yogo Magloire
- Mangeas Morgan
- Ma Qian
- Marchant Robert A.
- Marie Arul
- Mariot Hélène
- Marquer Laurent
- Marquet Aurélie
- Martinez Philippe
- Martins Gabriel
- Martins Gabriel
- Martins G.S.
- Martins Renato
- Martins V. T. S.
- Marti Olivier
- Martrat Belen
- Marty Bernard
- Massé Guillaume
- Masson-Delmotte Valérie
- Matheus Simões Santos
- Mathew Isack
- Matias Denise Margaret S.
- Mayta V. C.
- Mazier Florence
- Mazzoli Claudio
- Mbava Nozibusiso
- M'Bou A. Thongo
- Mcculloch Malcolm
- Mcculloch M.
- Mcculloch M.T.
- Mcduie Fiona
- Mcglone Matt S.
- Mcgregor Helen V.
- Mckay Nicholas
- Mckay Nicholas
- Mckay Nicholas P.
- Mckay Robert
- Mendes Vinícius
- Méndez César
- Mendez-Millan Mercedes
- Menkès Christophe E.
- Merle Jacques
- Messmer Vanessa
- Mester Zoltan
- Meyers P.A.
- Michel Elisabeth
- Michon Geneviève
- Miettinen Arto
- Migliore Jérémy
- Mignot Juliette
- Milena Souza Kury
- Minasny Budiman
- Missé Dorothée
- Mitma García Nancy
- Moigne A M
- Moigne Anne-Marie
- Molino Jean-François
- Momohara Arata
- Montagna Paolo
- Monthe Franck
- Montoroi Pierre
- Moquet Jean-Sébastien
- Moreira L.S.
- Moreira Luciane
- Moreira Luciane
- Moreira Luciane S.
- Moreira Luciane Silva
- Moreira-Ramírez Manuel
- Moreira‐ramírez Manuel
- Moreira-Turcq Patricia
- Moreno Eva
- Moreno Patricio I.
- Morera Sergio Byron
- Moretti Christian
- Morozova Polina A.
- Mortyn Peter Graham
- Mortyn P. Graham
- Mounic Stéphanie
- Mourier Thomas
- Moya Aurélie
- Moy Andrew D.
- Moy Andrew
- Msanda Fouad
- Muchaonyerwa Pardon
- Müller Stefanie
- Muratet Audrey
- Mutema Macdex