| Opard Global | US | Closed | 30 days | 10 % | ||
| Opitrip | FR | Closed | n/c | n/c | ||
| Optarise CBD DE | DE | Closed | 60 days | 40 % | ||
| Optical Express | DE | Closed | n/c | n/c | ||
| Optikdrecker.de | DE | Closed | n/c | 14 % | ||
| optikplus.de | DE | Closed | n/c | 5 % | ||
| OQIUM DE | DE | Closed | 30 days | 5 % | ||
| OQIUM FR | FR | Closed | 30 days | 5 % | ||
| OQIUM NL & BE | NL | Closed | 30 days | 5 % | ||
| OQIUM UK | GB | Closed | 30 days | 5 % | ||
| Orange Jeux | FR | Closed | n/c | n/c | ||
| Orangemayonnaise | NL | Closed | n/c | 10 % | ||
| Oranje-fanshop | NL | Closed | n/c | 6 % | ||
| Orbio World AU | AU | Closed | n/c | n/c | ||
| Orbio World Benelux | NL | Closed | n/c | n/c | ||
| Orbio World DACH | DE | Closed | n/c | n/c | ||
| Orbio World DK, ICL & FI | DK | Closed | n/c | n/c | ||
| Orbio World PL | PL | Closed | n/c | n/c | ||
| Orbio World SE & NO | SE | Closed | n/c | n/c | ||
| Orbio World UK | GB | Closed | n/c | n/c | ||
| Orbio World US & CA | US | Closed | n/c | n/c | ||
| Orchidella DE | DE | Closed | n/c | 30 % | ||
| Orelia | GB | Closed | n/c | 4 % | ||
| Original Dating | GB | Closed | 30 days | 15 % | ||
| Original Dating - Mixeo | GB | Closed | 30 days | 15 % | ||
| Original Organics | GB | Closed | 30 days | 5 % | ||
| Original Penguin | GB | Closed | n/c | 7 % | ||
| ORIGINAL RESORTS | ES | Closed | 30 days | 7 % | ||
| ORLY Nails UK | GB | Closed | 30 days | 10 % | ||
| Ormigo (Kurz-Kampagne) | DE | Closed | n/c | n/c | ||
| Orodispello IT | IT | Closed | 30 days | 12 % | ||
| Orpian | GB | Closed | 30 days | 10 % | ||
| Osteoplan | GB | Closed | n/c | 12 % | ||
| Otel.com | GB | Closed | n/c | 6 % | ||
| Otto Gourmet DE - Genuss aus artgerechter Haltung! | DE | Closed | 30 days | 7 % | ||
| OTTO Österreich | DE | Closed | n/c | n/c | ||
| OULdirect.com | GB | Closed | n/c | 14 % | ||
| outdoor-brands.com | DE | Closed | n/c | 8 % | ||
| Outdoor Exclusive | GB | Closed | n/c | n/c | ||
| Outdoor Leisurewear | GB | Closed | n/c | 10 % | ||
| Outdoor Living Hot Tubs | GB | Closed | 7 days | 1 % | ||
| Outdoor Look | GB | Closed | 30 days | 5 % | ||
| Outdoor Renner | DE | Closed | n/c | 7 % | ||
| outdoor-shop.com | DE | Closed | n/c | 7 % | ||
| Outdoor Toys Direct | GB | Closed | n/c | 3 % | ||
| Outfits24.de DE/AT | DE | Closed | 30 days | 8 % | ||
| Outlaws Amsterdam NL | NL | Closed | n/c | 8 % | ||
| Outlet-teppiche.de | DE | Closed | 30 days | 12 % | ||
| OUTSIDE PRINT IT | IT | Closed | 30 days | 10 % |