WWO is a Polish hip hop group. The letters in the group's name originally stood for W Witrynach Odbicia.

The two members of the group which originally started the underground project, which was WWO ("W Witrynach Odbicia" - "Shopping windows reflections") or ("W Wyjatkowych Okolicznosciach" - "In exceptional circumstances"), were: Sokół and Jędker (rapper) establishing themselves underground in 1996 releasing singles like 'Flippery' and 'Kolenda' which were made on tape and sold underground. The group claim these singles were made purely for themselves, for their own pleasure and enjoyment of hip-hop. WWO is part of a wider crew called ZIP skład, the members of which are: Jędker, Sokół, Pono, Felipe, Mieron, Jaźwa, Ward, Koras and Fu. WWO's first album release was called "Masz i Pomyśl". In that album featured 600V, Włodi and Pele from Molesta, Deszczu Strugi, and the rest of ZIP Skład. After this album the group came into conflict with their record label "BMG Poland" and due to legal reasons could no continue producing under their current name. They had a choice: either give up entirely or continue under a different name. Thus is December 2001 WWO ("W Witrynach Odbicia") ceased to exist and the group continued under their new name "W Wyjątkowych Okolicznościach". In this group Deszczu Strugi joined the other two members, mentioned above. He has been acclaimed as arguably one of the best hip-hop DJs in Poland. He has also performed for various other Polish hip-hop groups such as Mor W.A. and TrzyHa.