Olli Ilmari Rehn is a Finnish politician serving as governor of the Bank of Finland since 2018. A member of the Centre Party, he served as Minister of Economic Affairs in Juha Sipilä's cabinet from 2015 until 2016, the European Commissioner for Enlargement from 2004 to 2010 and European Commissioner for Economic and Monetary Affairs and the Euro from 2010 to 2014.