Proponents
3,644 proponents — individuals, institutions, and schools of thought — cited in the encyclopedia.
- Mark Cussen
- Mark Elgar
- Mark Hannah
- Mark Johnson
- Mark Lehner
- Mark Levine
- Mark Muro
- Mark Oppenheimer
- Mark P. Lagon
- Mark Penn
- Mark Pocan
- Mark Rylance
- Mark Simpson
- Mark Stephens
- Mark Twain
- Mark Urban
- Mark Warner
- Mark Whitehead
- Mark Wolfson
- Mark Zandi
- Mark Zuckerberg
- Marla Tabaka
- Marouane Fellaini
- Marta Zaraska
- Martha Gill
- Martha Honey
- Martha Kinsella
- Martha Nussbaum
- Martha Spurrier
- Martha Stewart
- Martin Kettle
- Martin Luther King Jr.
- Martin Mayer
- Martin Scorsese
- Martin Seligman
- Marty Makary
- Marvin Elkind
- Marvin Rees
- Mary Annaïse Heglar
- Mary Bassett
- Mary Franson
- Mary Fulbrook
- Mary Kate Cary
- Mary Kate McCoy
- Mary Lou McDonald
- Mary Lou Retton
- Mary Norris
- Mary-Ellen Douglas
- Maryann Ayim
- Marysol Villeda
- Massachusetts Institute of Technology
- Matakanye Matakanye
- Mateusz Morawiecki
- Matt Bevin
- Matt Bruenig
- Matt Burgess
- Matt Ford
- Matt Gorman
- Matt Graham
- Matt Hancock