Catalunya en Comú (English: "Catalonia in Common", CatEnComú or CatComú), previously Un País en Comú (English: "A Country in Common") and collectively dubbed as Comuns (English: Commons),[3][4] is a Catalan-based political party established in December 2016 as an umbrella for Barcelona en Comú, Initiative for Catalonia Greens (ICV), United and Alternative Left (EUiA) and Equo, which until then had been collaborating through electoral alliances under the Catalunya Sí que es Pot and En Comú Podem labels in the September 2015 regional and December 2015 and June 2016 general elections.

Its spokesman until 2018 was En Comú Podem's spokesperson in the Congress of Deputies, Xavier Domènech, with the new party being sponsored by Mayor of Barcelona Ada Colau.

[3][6][7] On 19 December 2016, the "Un País en Comú" (English: "A Country in Common") platform was launched with the aim of constituting the political space previously represented by the Catalunya Sí que es Pot and En Comú Podem alliances into a permanent political party.

[12] Organizational disagreements in March over the voting system selected to elect the leadership team and the ideological principles that should govern the new platform had seen regional Podemos/Podem leader, Albano Dante Fachin, opting out of the founding congress at the last moment, promising future collaboration with the other constituent parties but rejecting to integrate Podem into the new party.

[13][14][15] Despite this, several Podem members disaffected with Fachin's leadership, such as Jéssica Albiach o Marc Bertomeu, did join the new party on their own accord.