Kowalscy kontra Kowalscy (; ) is a Polish-language comedy drama television series written and directed by Okil Khamidov, and produced by Khamidov, Krzysztof Hansz, and Tamara Aagten-Margol. The series was produced in Poland by Tako Media Polska for Polsat. It has 2 seasons, consisting of a total of 44 episodes, each lasting 22 minutes. The first episode aired on 6 March 2021, and the final episode, on 28 May 2022. It was based on a 2017 Russian-language television series titled The Ivanovs vs. The Ivanovs.
After being born, Jan and Nikodem, two children from two unrelated families, both with the surname Kowalski, get mixed up in the hospital, ending up with the wrong families. Jan ends up with businessperson Piotr Kowalski, and his wife, Anna, who are a rich family living in a luxurious villa. Meanwhile, Nikodem ends up with Henryk and Jadwiga Kowalski, a poor uneducated family living in a ramshackle cottage. After 17 years two families discover the truth about their children.
The series is based on a 2017 Russian-language television series titled The Ivanovs vs. The Ivanovs, produced for STS television network, and directed by Anton Fedotov, Andrei Elinson, Sergey Znamenskiy, Fyodor Stukov, and Alyona Korchagina.
Kowalscy kontra Kowalscy was written and directed by Okil Khamidov, and produced by Khamidov, Krzysztof Hansz, and Tamara Aagten-Margol. The cinematography was done by Tomasz Dobrowolski and Maciej Tarapacz, music by Akhmad Bakaev, editing by Paweà  Sitkiewicz (season 1) and Paweà  Potocki (season 2), and scenography by Maà Âgorzata Skwarek. The show was filmed in Warsaw, Poland, and produced by Tako Media Polska for Polsat television network.
The production began on 7 June 2020. The main cast included: Piotr Adamczyk, Marieta à »ukowska, Wojciech Mecwaldowski, Katarzyna Kwiatkowska, Paweà  Wawrzecki, Patryk Cebulski, Jakub Zdrójkowski, Wiktoria Gàsiewska, Mikoà Âaj Cieà Âlak, Joanna Orleaà Âska, and Bartosz Obuchowicz. The first episode of the season aired on 6 March 2021, and its final episode, on 8 May 2021.
The production of the second season began on 26 May 2021. The main cast was joined by Jerzy Boà Âczak. Its first season aired on 5 March 2022, and the final episode, on 28 May 2022.
In June 2022, the management of Polsat informed that the production of the third season was halted, and the series was canceled. Such decision was made due to the Russian origin of the show, in a wake of the 2022 Russian invasion of Ukraine.