National level edit

• President - vacant, Friedrich Ebert (Social Democrats) (from 11 February)

• Chancellor - Friedrich Ebert (Social Democrats) ("Head of Government") (to 11 February), Philipp Scheidemann (Social Democrats) (to 20 June), Gustav Bauer (Social Democrats) (from 21 June)

• 5–15 January – Spartacist uprising
• 19 January – German federal election, 1919
• 13 February – Scheidemann cabinet are sworn in.
• 29 March – University of Hamburg is established.
• 21 June – Bauer cabinet are sworn in.
• 28 June – The Weimar Republic is forced to sign the Treaty of Versailles under threat of continued Allied advance, which effectively ended World War I.
• 12 September – Adolf Hitler spies on the German's Worker Party meeting in 1919 for the Reichswehr, also joining the party.^[1]

Undated edit

• Betz's law is published in 1919, by the German physicist Albert Betz. It indicates the maximum power that can be extracted from the wind, independent of the design of a wind turbine in open flow.
• Forbo Movement Systems, a manufacturer of conveyor and power transmission belts is founded.^[2]
• Münchener Lichtspielkunst AG is founded in Munich.

• 29 January – Konrad Hesse, German judge (died 2005)
• 6 March – Michael Karkoc, German war criminal (died 2019)
• 27 March – Peter Selz, German-born art historian (died 2019)
• 3 March – Loki Schmidt, German environmentalist, wife of Helmut Schmidt (died 2010)
• 6 April – Heinz Schimmelpfennig, German actor (died 2010)
• 23 April – Anne Buydens, Belgian-American actress (died 2021)
• 3 May – Traute Lafrenz, German-American physician and anthropologist (died 2023)
• 16 May – Albert Osswald, German politician (died 1996)
• 19 June - Anneliese Rothenberger, German operatic soprano (died 2010)
• 7 July – Hans Adolph Buchdahl, German-born Australian physicist (died 2010)
• 8 July – Walter Scheel, German politician (died 2016)
• 29 July – Kunigunde Bachl, German physician and politician (died 1994)
• 31 August – Eric Koch, German-Canadian author, broadcaster and academic (died 2018)
• 30 August – Wolfgang Wagner, German opera director (died 2010)
• 5 September – Elisabeth Volkenrath, German Nazi concentration camp supervisor (died 1945)
• 22 September – Franz Peter Wirth, German film director (died 1999)
• 29 September – Margot Hielscher, German actress and singer (died 2017)
• 3 October – Hella Brock, German musicologist (died 2020)
• 7 October – Annemarie Renger, German politician (died 2008)
• 6 November – Christoph Probst, German resistance fighter and Catholic martyr (died 1943)^[3]
• 9 November – John Herberger, German football player and coach (died 2002)
• 10 November – Kurt Schmücker, German politician (died 1996)
• 14 November – Lisa Otto, German soprano (died 2013)
• 30 November – Detlef Kraus, German pianist (died 2008)
• 31 December – Artur Fischer, German inventor (died 2016)