The Official Unofficial
Rotterdam, NetherlandsNext edition not announced · last held 2026
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Editions
Overview
About
The Official Unofficial festival takes place in Rotterdam, across several venues in the city centre. A free event separate from Left of the Dial, it consists of concerts organised by hosts and local venues, which welcome bands over two days.
On site
Practical info
Kids & family
- Free for kids
Getting there
Location
Rotterdam, Netherlands
Get directionsArchive
Past editions
2026Oct 23–24, 2026