Authors Born on January 23
- Abram Besicovitch Mathematician, 1891
- Alan Cheuse Writer, 1940
- Alfred Denning, Baron Denning Lawyer, 1899
- Alister E. McGrath Theologian, 1953
- Anita Pointer Singer-Songwriter, 1948
- Anne Foy Television Presenter, 1986
- Antonio Villaraigosa Politician, 1953
- Anya Seton Author, 1904
- April Pearson Actress, 1989
- Arjen Robben Football Player, 1984
- Bill Hayden Politician, 1933
- Bob Paisley Football Player, 1919
- Bobby Schilling Politician, 1964
- Bud Shuster Politician, 1932
- Camilla Collett Writer, 1813
- Cathy Hopkins Author, 1953
- Chester Nez Officer, 1921
- Chita Rivera Actress, 1933
- Dan Rice Entertainer, 1823
- David Douglas Duncan Photojournalist, 1916
- David Hilbert Mathematician, 1862
- Dawn O'Porter Writer, 1979
- Derek Cianfrance Film Director, 1974
- Derek Walcott Poet, 1930
- Don Wright Cartoonist, 1934
- Doutzen Kroes Supermodel, 1985
- Edouard Manet Artist, 1832
- Eric Metcalf American Football Player, 1968
- Eric Pianka Author, 1939
- Ernest Poole Novelist, 1880
- Ernie Kovacs Comedian, 1919
- Ewen Bremner Actor, 1972
- Frances Bay Television Actor, 1919
- Frank Lautenberg Politician, 1924
- Gail O'Grady Actor, 1963
- Gary Burton Composer, 1943
- Gatewood Galbraith Author, 1947
- Georg Baselitz Painter, 1938
- Gertrude B. Elion Biochemist, 1918
- Jack Reynor Actor, 1992