National Day of Catalonia
| National Day of Catalonia Catalan: Diada Nacional de Catalunya | |
|---|---|
Floral offerings at the monument to Rafael Casanova on Barcelona's Ronda de Sant Pere, 2005. Casanova was one of the Catalan commanders during the Siege of Barcelona. | |
| Official name | Diada Nacional de Catalunya |
| Also called | Diada, Onze de Setembre |
| Observed by | Catalonia (Spain) |
| Type | National day |
| Significance | Commemorates the last stand of the defense of Barcelona during the War of the Spanish Succession in 1714. |
| Celebrations | Flag hoisting, floral offerings, singing patriotic songs, speeches, pro-independence demonstrations, entertainment and cultural events |
| Date | 11 September |
| Next time | 11 September 2026 |
| Frequency | annual |
| Catalan / Valencian cultural domain |
|---|
The National Day of Catalonia (Catalan: Diada Nacional de Catalunya [diˈaðə nəsi.uˈnal də kətəˈluɲə]), also known as the Diada, is a day-long festival in Catalonia and one of its official national symbols, celebrated annually on 11 September. It is one of the public holidays in Catalonia.
It commemorates Catalan last stand at the siege and fall of Barcelona at the end of the War of the Spanish Succession in 1714 and the subsequent repression and loss of the Principality of Catalonia's institutions, legal system and, thus, its separate status.