Authors Born on January 31
- Paul Scheer Actor, 1976
- Peter Dawson Musician, 1882
- Phil Manzanera Musician, 1951
- Philip Glass Composer, 1937
- Portia de Rossi Actress, 1973
- Preity Zinta Film Actor, 1975
- Steven Amsterdam Writer, 1966
- Stewart Udall Politician, 1920
- Suzanne Pleshette Actress, 1937
- Tallulah Bankhead Television Actor, 1902
- Terry Kath Musician, 1946
- Tyler Hubbard Musician, 1987
- Tyler Ritter Actor, 1985
- Victor Ortiz Actor, 1987
- Vitalik Buterin Programmer, 1994
- Wil Anderson Comedian, 197
- Will McIntosh Author, 1962
- Wilson Bryan Key Author, 1925
- Zane Grey Author, 1872