- Jan 6 Ferdinand Simon Gassner, Austrian composer and music writer, born in Vienna, Austria (d. 1851)
- Jan 14 Isaac da Costa, Jewish poet, born in Amsterdam, Netherlands (d. 1860)
- Jan 14 Johan Rudolph Thorbecke, Premier of Netherlands (Lib-1849..72), born in Zwolle, Netherlands (d. 1872)
- Jan 15 Thomas Crofton Croker, Irish story teller (Fairy legends), born in Cork, Ireland (d. 1854)
Auguste Comte (1798-1857)
Jan 19 French philosopher and father of sociology (A General View of Positivism), born in Montpellier, France
- Jan 20 Anson Jones, 5th and last President of Texas, born in Great Barrington, Massachusetts (d. 1858)
- Jan 24 Karl von Holtei, Silesian actor, playwright and author (Die Vagabunden), born in Poland (d. 1880)
- Jan 24 Karl von Staudt, German mathematician (projective geometry), born in the Free Imperial City of Rothenburg, (d. 1867)
- Jan 29 Henry Neele, English poet, born in London, England (d. 1828)
- Jan 31 Carl Gottlieb Reissiger, German composer and Kapellmeister (Dresden), born in Belzig (d. 1859)
20-29
30-39
40-49
50-59
80-89
Over 90