- Jan 17 Thomas Fairfax, Lord Fairfax, English Parliamentary general (Commander-in-Chief of New Model Army during English Civil War), born in Denton Hall, Yorkshire, England (d. 1671)
- Jan 31 Henry Casimir I, Dutch count of Nassau-Dietz and Stadholder of Freisland, born in Arnhem (d. 1640)
- Feb 6 Antoine Arnauld, French Roman Catholic theologian & philosopher & mathematician, born in Paris, France (d. 1694)
- Feb 8 Samuel Butler, English poet and satirist (Hudibras) (baptized)
- Feb 22 George Digby, 2nd Earl of Bristol, English statesman (d. 1677)
- Feb 28 John Pearson, English theologian (d. 1686)
- Jun 23 André Tacquet, Belgian mathematician (d. 1660)
- Jun 23 Justus G Schottel [Schottelius], German poet
- Jun 25 John Albert Vasa, Polish bishop, born in Warsaw, Poland (d. 1634)
- Jul 27 Murad IV, Sultan of Turkey (1623-40) who conquered Baghdad, born in Constantinople, Ottoman Empire (d. 1640)
- Aug 28 Marcus Zuerius van Boxhorn, Dutch scholar, born in Bergen op Zoom, Netherlands (d. 1653)
- Sep 25 Mark Zuesius Boxhorn, Dutch historian, born in Bergen-op-Zoom, The Netherlands (d. 1653)
- Sep 28 Michel Anguier, French sculptor, born in Eu, Normandy, France (d. 1686)
- Oct 25 James Graham, Marquis of Montrose "the Great Montrose", Scottish general and poet, born in Edinburgh, Scotland (d. 1650)
- Nov 17 Dorgon, Manchu prince, Prince-Regent for Shunzhi Emperor (introduced compulsory wearing of queues) (d. 1650)