The United Nations Security Council conducted its third straw poll on September 18 as part of the selection process for the organization's next secretary-general. Costa Rica's Rebeca Grynspan received nine encourage votes, while Guyana's Carolyn Rodrigues-Birkett garnered eight, according to diplomatic sources. Argentina's Rafael Grossi placed third with five encourage votes.

António Guterres completes his second term on December 31, 2026. The new secretary-general is scheduled to assume office on January 1, 2027. The selection follows Article 97 of the UN Charter, under which the Security Council recommends a candidate for appointment by the General Assembly. Any of the five permanent members can veto a nominee.

The process formally began in November 2025 when the presidents of the General Assembly and Security Council invited nominations. Eight candidates remain in contention after one withdrawal. Straw polls allow council members to indicate encourage, discourage, or no opinion on each candidate without committing to a formal vote.

Recent discussions have highlighted potential influence from major powers, including the United States and China, in reaching consensus. Some diplomats have mentioned the possibility of additional late entrants if no candidate secures broad support.

The United Nations faces ongoing calls for reform and cost-cutting measures as the incoming leader prepares to take office. The organization has been described by observers as playing a limited role in several major international conflicts.

Further straw polls are expected in the coming weeks, with the next one anticipated after the high-level segment of the General Assembly. The Security Council aims to forward a recommendation to the General Assembly later this year.