The presence of immigrants has the potential to produce significant changes in the social and cultural fabric of a city, although they may equally well remain essentially invisible. In the present article I discuss the presence of Polish immigrants in the urban space of Reykjavik. Since the first decade of the 21st century, Poles have been the largest non-native nationality in the island, this being the fourth such case in the world – aside from Norway, Ireland and the United Kingdom. The numerical dominance of Poles among immigrants to Iceland is such that immigrant, or foreigner, is frequently considered as synonymous to Pole. Does this predominance of Poles among immigrants translate to their visibility in the urban space? In what ways do they mark their presence? In the article I analyze the presence and activity of Poles in the spheres of culture, local politics, business and sports. I describe Polish organisations and associations, and events held by the Polish diaspora. Some of those are focused on cultivating the culture of the country of origin and on integration within the group, thus being typical Oddiseyan associations; the purpose of others is to facilitate the adaptation of Poles to the host society, and to promote Polish culture within the host society– thus they are reminiscent of Rubiconic associations, to refer to Daniel Joly’s wellknown classification. In the article I consider the question: which among the Polish initiatives have gained visibility among the hosts and have the potential to become relatively permanent fixtures of the cultural map of Reykjavik. Is the potential of the Polish diaspora in terms of organisation and culture sufficient to reach a wide audience of Icelanders and foreigners of other nationalities, and to gain their interest?