Who is the chief secratary of uno?

As of October 2023, the Secretary-General of the United Nations is António Guterres, who has held the position since January 1, 2017. The Secretary-General acts as the chief administrative officer of the UN and represents the organization globally. Guterres, a former Prime Minister of Portugal and head of the UN Refugee Agency, has focused on issues like climate change, conflict resolution, and global health during his tenure.