In this article we examine the relationship between soccer culture and the vernacular region of Cascadia. Specifically, we consider how supporters of the Portland Timbers, Seattle Sounders and Vancouver Whitecaps mobilize the bioregional narrative of Cascadia. This Cascadian narrative helps to solidify supporter culture and identity by fostering a connection between supporters and place. As a result, soccer has also become one conduit through which ideas about Cascadia are constructed, experienced and communicated. In this way, ideas about Cascadia help to construct regional and local soccer cultures in Portland, Seattle and Vancouver and in turn, those soccer cultures help to construct and promote Cascadia. We examine three aspects of this situation: the formation of the Cascadia Football Federation, the Cascadia Cup Controversy and the use of Cascadian iconography by supporters of the aforementioned clubs.