Big W was a large format chain of megastores owned by the Kingfisher Group (later Woolworths Group PLC) in United Kingdom, which operated between 1998 and 2004. Big W consisted of Kingfisher's main retail chains that they owned at the time - Comet, B&Q, Superdrug and Woolworths in one store format. Despite sharing the name with the Australian chain of the same name, the two of them are not related, as they were owned by different companies.