- Machine Biointerface Lab - Gene Fridman, Ph.D., M.S.
- Mahendra Damarla Lab - Mahendra Damarla, M.D.
- Marcia Canto Lab - Marcia Canto, M.D.
- Marek Mirski Lab - Marek Mirski, M.D., Ph.D.
- Mariana Brait Lab - Mariana Brait, Ph.D., M.Sc.
- Marie Hanna Lab - Marie Hanna, M.B.B.Ch., M.D.
- Marie-France Penet Lab - Marie-France Vidaver, Ph.D.
- Mark Donowitz Lab - Mark Donowitz, M.D.
- Mark Dredze Lab - Mark Dredze, Ph.D., M.A.
- Mark Hughes Lab - Mark Hughes, M.D.
- Mark Levis Laboratory - Mark Levis, M.D., Ph.D.
- Mark Liu Lab - Mark Liu, M.D.
- Mark Sulkowski Lab - Mark Sulkowski, M.D.
- Marsh Lab - Elisabeth Marsh, M.D.
- Marshall Shuler Laboratory - Marshall Shuler, Ph.D.
- Martin G. Pomper Lab - Martin Pomper, M.D., Ph.D.
- Marvel Cognitive Neuropsychiatric Research Laboratory - Cherie Marvel, Ph.D.
- Mary Beth Brady Lab - Mary Brady, M.D.
- Mary Catherine Beach Lab - Mary Catherine Beach, M.D., M.P.H.
- Maryam Jahromi Lab - Maryam Keshtkar Jahromi, M.D., M.P.H.
- Mass Spectrometry Core - Robert Cole, Ph.D., M.S.
- Matthew McNabney Lab - Matthew McNabney, M.D.
- Maura McGuire Lab - Maura McGuire, M.D.
- Maureen Horton Lab - Maureen Horton, M.D.
- Medication Development for Drug Use Disorders - Kelly Dunn, Ph.D., M.B.A., M.S.
- Meredith McCormack Lab - Meredith McCormack, M.D., M.H.S.
- Merkin Peripheral Neuropathy and Nerve Regeneration Center - Ahmet Hoke, M.D., Ph.D.
- Michael A. Jacobs Lab - Michael Jacobs, Ph.D.
- Michael A. Rosen Lab - Michael Rosen, Ph.D., M.A.
- Michael B. Streiff Lab - Michael Streiff, M.D.
- Michael Caterina Lab - Michael Caterina, M.D., Ph.D.
- Michael Erdek Lab - Michael Erdek, M.D.
- Michael Kornberg Lab - Michael Kornberg, M.D., Ph.D., M.S.
- Michael Melia Lab - Michael Melia, M.D.
- Michael Wolfgang Laboratory - Michael J. Wolfgang, Ph.D.
- Michelle Belantoni Lab - Michele Bellantoni, M.D.
- Michelle Eakin Lab - Michelle Eakin, Ph.D., M.A.
- Mihaela Pertea Lab - Mihaela Pertea, Ph.D., M.S., M.S.E.
- Mihail Zilbermint Lab - Mihail Zilbermint, M.D., M.B.A.
- Minimally Invasive Neurosurgery - Alan Cohen, M.D.
- Minimally Invasive Neurosurgery Lab - Alan Cohen, M.D.
- M-Irfan Suleman Lab - M-Irfan Suleman, M.B.B.S.
- Mohamed Atta Lab - Mohamed Atta, M.B.B.Ch., M.D., M.P.H.
- Mohamed Farah Lab - Mohamed Farah, Ph.D.
- Molecular Genetics Laboratory of Female Reproductive Cancer - Ie-Ming Shih, M.D., Ph.D.
- Molecular Mechanisms of Cellular Mechanosensing (Robinson Lab) - Douglas Robinson, Ph.D., M.Phil.
- Molecular Oncology Laboratory - Valsamo Anagnostou, M.D., Ph.D.
- Mollie Meffert Lab - Mollie Meffert, M.D., Ph.D., M.S.
- Motion Analysis Laboratory - Amy Bastian, Ph.D.
- MR Research Laboratory - Paul Bottomley, Ph.D.
- MRB Molecular Imaging Service Center and Cancer Functional Imaging Core - Zaver Bhujwalla, Ph.D., M.Sc.
- Mukherjee Lab - Monica Mukherjee, M.D., M.P.H.
- Multiple Sclerosis Rehabilitation Research Program - Abbey Hughes, Ph.D., M.A.