The aim of this article is to analyse the identity-making role played by the maritime factor in promoting the international picture of the young Finnish republic by using the case study of the frigate Suomen Joutsen on its international voyages from 1931 to 1939. The rituals of naval diplomacy meant that the political, diplomatic and commercial authorities of the nations visited were brought on board the ship and contacts were made with the recently established Finnish consular network. In addition to such contacts, the extensive use of the press and radio was an important factor in promoting the young Finnish republic. Moreover, in countries with important communities of Finnish emigrants, contacts were made with those groups. Finally, with a floating exhibition of Finnish products on board, it was possible to establish commercial relations. Hence, the international cruises of the Suomen Joutsen were fundamental channels for the representation of the young Finnish nation.