Source: Public Domain
With U.S. Secretary of State John Kerry in 2015
Ban Ki-Moon (반기문; b. June 1944) - is a South Korean statesman and politician who served as the eighth Secretary-General of the United Nations, its chief administrative officer, from January 2007 to December 2016. He took office as the leader of the United Nations in 2007, and, in 2011, he was re-elected to his second and final five-year term which began in 2012.
Among many of his significant roles/positions in South Korea, he served as its Minister of Foreign Affairs and Trade from 2004 to 2006.
In 2015, Forbes Magazine ranked him as the 40th Most Powerful Person in the world.