| ACT | COUNTRYCNT | EDITIONED | FESTIVALFES |
|---|---|---|---|
| Ocean Wisdom | GBUnited Kingdom 2019 | | |
| Octavian | GBUnited Kingdom 2019 | | |
| Onipa | GBUnited Kingdom 2019 | | |
| Otzeki | GBUnited Kingdom 2017 | | |
| OSCAR | GBUnited Kingdom 2016 | | |
| Ou Est Le Swimming Pool | GBUnited Kingdom 2010 | | |
| Oi Va Voi | GBUnited Kingdom 2004 | |