Charles C. Adams Jr. (born August 25, 1947) is the former United States Ambassador to Finland. Previously, he was an American international arbitration expert and American political and social activist. Based in Geneva, Switzerland, he served as co-chair of Americans Abroad for Obama, a Democratic Party fundraising and networking organization of Americans living overseas. and raised money for Democratic candidate Pete Buttigieg. He also served as a member of the National Finance Committee of the 2012 Barack Obama presidential campaign, a position he also held during the 2008 Obama campaign.