On 9 January, police entered the Presidential Palace in Warsaw to arrest former Interior Minister Mariusz Kamiński (Law and Justice party) and his former deputy, both of whom had been sentenced to two year's jail for abuse of power.
On 14 September, Piotr Wawrzyk, dismissed from his post of Deputy Foreign Minister amid a cash-for-visa scandal, was hospitalized after a suicide attempt.
On 14 November, Jerzy Połomski, a popular actor and pop singer, died at the age of 89.
On 3 October, Jerzy Urban, a scandalizing anti-clerical journalist who had served as press secretary for the Communist government in the 1980s, died at the age of 89.
On 27 September, one day after a series of explosions rendered the Nord Stream gas pipelines from Russia to Germany inoperable, the Baltic Pipe, carrying natural gas from the North Sea to Denmark and Poland, was opened.
On 23 September, Franciszek Pieczka, a prominent stage and film actor, died at the age of 94.
On 10 December, Cyberpunk 2077, a role-playing video game by the Polish game developer CD Projekt, was released to universal critical acclaim, but widely criticized for technical faults in the console versions.
On 7 February, former Prime Minister Jan Olszewski died at the age of 88.
On 14 January, the mayor of Gdańsk, Paweł Adamowicz, died at the age of 53 after being stabbed by a man who rushed on stage during an open-air charity event.
On 20 December, President Andrzej Duda signed new legislation to restructure the National Council of the Judiciary, defying disciplinary measures launched on the same day by the European Commission, concerned that judiciary reforms in Poland present a "clear risk of a serious breach of the rule of law".
On 6 December, the discovery of Halszkaraptor, a genus of semiaquatic bird-like dinosaur named after Polish paleontologist Halszka Osmólska, was announced.
On 9 January, Zygmunt Bauman, a prominent Polish-British sociologist and philosopher who developed the idea of liquid modernity, died at the age of 91.
On 22 September, Robert Lewandowski, a Polish footballer playing for the German team Bayern Munich, broke several records by scoring five goals in nine minutes.
On 6 September, Poland held a referendum on questions related to electoral law, taxation, and financing of political parties, with results non-binding due to record-low turnout.
On 13 April, Günter Grass, a German-language writer of Kashubian-German origin and Nobel Prize winner, who explored the theme of German-Polish relations in Nazi-eraDanzig, died at the age of 87.
On 8 March, a 6 km stretch of the second, east-west line of the Warsaw Metro, Poland's only underground rapid transit system, was opened for use.
On 4 June, leaders of Poland, the United States, and about 40 other countries gathered in Warsaw to mark the 25th anniversary of Solidarity's victory in the 1989 parliamentary election that led to the first non-communist government in the Eastern Bloc.
On 29 December, Wojciech Kilar, an acclaimed classical and film music composer, died at the age of 81.
On 5 December, Poland was hit by a winter storm brought by Cyclone Bodil (known locally as Ksawery), causing five deaths and blackouts in 400,000 households.
On 5 March, Maciej Berbeka, Tomasz Kowalski, Adam Bielecki, and Artur Małek made the first winter ascent of Broad Peak (8,051 m); the former two died during descent.
On 16 June, Brig. Gen. Sławomir Petelicki (aged 65), the first commander of the GROM special forces unit, was found dead from a self-inflicted gunshot wound to his head.
On 26 January, Poland signed the Anti-Counterfeiting Trade Agreement despite street, parliamentary, and online protests, including DoS attacks against government websites (update: on 17 February Poland decided not to ratify the treaty).
On 7 January, Justyna Kowalczyk became the first cross-country skier to win the Tour de Ski three times in a row.
On 17 July, 6,000 people, watched by 200,000 visitors, took part in a reënactment of the Battle of Grunwald as part of its 600th anniversary celebrations.
On 12 July, Henryk Jankowski, a controversial Roman Catholic priest who supported the Solidarity movement in the 1980s, died at the age of 73.
