Authors Born on January 1
- Maira Kalman Writer, 1949
- Manoj Bhargava Businessperson, 1953
- Marcus Sakey Author, 1974
- Margaret Turnbull Astronomer, 2000
- Maria Edgeworth Writer, 1968
- Mark Bridges Designer, 2000
- Mark V. Hurd Businessman, 1957
- Mark Walter Businessman, 1960
- Marshall Curry Director, 2000
- Martin Evans Geneticist, 1941
- Mary Beard Scholar, 1955
- Matt Robinson Actor, 1937
- Matthew Walker Scientist, 1973
- Max Azria Fashion Designer, 1949
- Meryl Davis Dancer, 1990
- Michael Lynton Businessman, 1960
- Michael Moschen Juggler, 1953
- Michael Ryan Epidemiologist, 1965
- Michel Onfray Writer, 1959
- Mitchell Zuckoff Professor, 1962
- Molly O'Keefe Novelist, 1900
- Morris Chestnut Actor, 1969
- Nancy Duarte Writer, 1950
- Nancy Lam Chef, 1948
- Nancy Pearcey Author, 1952
- Nanette Lepore Fashion Designer, 1964
- Nate Lowman Painter, 1979
- Nate Powell Cartoonist, 1978
- Nathaniel Dean Actor, 1901
- Neil Genzlinger Playwright, 1954
- Nell Leyshon Dramatist, 1962
- Nick Szabo Computer Scientist, 1953
- Nicola Monaghan Novelist, 1971
- Nilus of Sinai Saint, 400
- Noah Kahan Singer-Songwriter, 1997
- Oliver Herford Writer, 1863
- Ori Gersht Photographer, 1967
- Origen Theologian, 185
- Osman Baydemir Politician, 1971
- Osman Rashid Businessperson, 1970