He said he agreed with his predecessor Sauli Niinisto "who said that we need a more European NATO".
He would be "a Western president in many ways" and lean towards the United States, Britain and Nordic neighbours when it came to setting the tone of foreign policy, he told Reuters.
"My starting point is, paraphrasing (European Central Bank President) Mario Draghi, whatever it takes," Stubb said.
During his election campaign Stubb said Finland should be an active NATO member and seek to have some NATO troops stationed on its territory.
Stubb is a keen amateur athlete and triathlon champion - though he has said he will cut down on sport once he becomes Finland's 13th president.
Persons:
Anne Kauranen, Alexander Stubb, Sauli Niinisto, Mario Draghi, Stubb, Johanna Vuorelma, Vuorelma, Markku Jokisipila, Suzanne Innes, Andrew Heavens
Organizations:
Anne Kauranen HELSINKI, NATO, Reuters, European Investment Bank, European University Institute, Nordic, Ukraine, Central Bank, Helsinki, University of Helsinki, Finland's Centre, Parliamentary Studies, National Coalition Party
Locations:
Ukraine, Russia, Finland, Europe, Florence, United States, Britain, British