Obama was sworn in as the 44th president of the United States on Tuesday.
In an interview with the Centre Party's online publication Verkkoapila, Vanhanen mentioned the importance of achieving a global climate agreement. However, the premier said that one of Obama's main challenges would be revitalising the economy.
Vanhanen added that the election of Obama brought about positive expectations for change.
Furthermore he said he believes the US, along with other international players, will continue its active role in forging world peace.