Through the concept of transnational space and “case-study” method, the prospects for the involvement of Ibero-America  in the  virtual  Trans-Arctic, which is turning into a  geoeconomic  and geopolitical "bond"  of two neighboring  spaces –Trans-Atlantic  and  Trans-Pacific –are  considered.  The  strengthening  of  Iberoamerican states’ presence in the Trans-Arctic will be a factor in increasing their ratings in the global hierarchy, will provide them with new geopolitical advantages for global competition, will strengthen comprehensive security (economic, environmental, energy, transport and logistics, food, water). In the context of the Arctic interests of Ibero-America, special attention is paid to options for possible "win-win" cooperation in the Arctic zone of the Russian Federation, including taking into account the  potential of BRICS and its "outreach" and "BRICS +" platforms. Highlighted fundamental legal differences between Trans-Arctic and Antarctic. The Arctic prospects of Brazil as a channel for the realization of the circumpolar interests of the Iberoamerican states are emphasized.