• President of Chile: Luis Altamirano (until 23 January), Pedro Dartnell (until 27 January), Emilio Bello (until 20 March), Arturo Alessandri (until 1 October), Luis Barros Borgoño (until 23 December), Emiliano Figueroa

January edit

• 23 January – The 1925 Chilean coup d'état overthrows the September Junta.
• 27 January – The January Junta is established and recalls Arturo Alessandri to the presidency.

March edit

• March – Marusia massacre

August edit

• 30 August – The Chilean constitutional referendum, 1925 is held. It creates the Chilean Constitution of 1925.

October edit

• 1 October – President Arturo Alessandri resigns.
• 22 October – Emiliano Figueroa is elected as president in the Chilean presidential election, 1925.

November edit

• 22 November – The Chilean parliamentary election, 1925 is held. The Liberal Party becomes the largest party in the Chamber of Deputies.

• 15 January – Luis Mayanés (d. 1979)
• 19 March – Julio Canessa (d. 2015)^[1]
• 26 March – Claudio Spies (d. 2020)
• 9 August – Valentín Pimstein (d. 2017)
• 25 December - Carla Cordua

• 2 November – Sofanor Parra (b. 1850)