Colombian President Gustavo Petro announced his support for the potential candidacy of former Chilean President Michelle Bachelet to become Secretary-General of the United Nations, in a move that once again brings the debate over female leadership in the world’s leading international organizations to the forefront.
The possibility of Bachelet succeeding Portuguese diplomat Antonio Guterres has begun to gain traction in various diplomatic circles, especially in Latin America, where the former president maintains a broad network of political support and international recognition.
Bachelet’s potential candidacy also comes at a time of intense global tensions, marked by the wars in Ukraine and Gaza, deteriorating relations between major powers, and the difficulties the United Nations faces in responding effectively to international crises.
In that context, Petro raised the need for the organization to have leadership with political experience, mediation skills, and a vision more closely aligned with the social and environmental challenges facing the world.
Colombia’s Petro supports Michelle Bachelet’s UN candidacy
Support from the Colombian president became known amid diplomatic discussions over the renewal of leadership at the UN, whose current secretary-general will conclude his term in 2026. Although the formal process has not yet begun, several governments and political sectors have already started putting forward names to succeed Guterres.
“As president of Colombia, I have decided to support Michelle Bachelet to become the new secretary-general of the United Nations,” Petro wrote yesterday on his account on the social media platform X.
Petro believes Michelle Bachelet has the political qualifications and international experience necessary to assume the position. The former Chilean president has maintained an active presence in multilateral organizations for years and is one of the Latin American figures with the greatest global recognition.
Petro’s endorsement came nearly a week after Brazilian President Luiz Inacio Lula da Silva did the same, highlighting both “her experience as head of state” and “her deep knowledge of the UN” to argue that she is, in his view, “the ideal candidate.”
The Colombian support also carries significant symbolic weight. Petro has repeatedly insisted in different international forums on the need to reform the multilateral system and strengthen the role of the United Nations in addressing issues such as climate change, inequality, and armed conflicts. Within that discourse, the possibility of a Latin American woman becoming Secretary-General for the first time appears as a significant political signal.
For now, Bachelet has not officially announced any candidacy. However, her name is among the most frequently mentioned by diplomats and analysts who believe there is a favorable environment for a woman to finally occupy the United Nations’ most visible position after decades of male leadership.
Cómo presidente de la República de Colombia he decidido respaldar a Michelle Bachelet para ser la nueva secretaria general de la Organización de las Naciones Unidas pic.twitter.com/82YSTONrO3
— Gustavo Petro (@petrogustavo) May 20, 2026
Who Is Michelle Bachelet?
Michelle Bachelet (74) is one of the most influential political leaders in Latin America in recent decades. A physician by profession and a socialist activist, she first became president of Chile in 2006, becoming the first woman to govern the country. She later returned to power in 2014 for a second term.
Her personal history deeply shaped her political career. During the dictatorship of Augusto Pinochet, her father, an Air Force general who opposed the military coup, died in prison after being tortured. Bachelet and her mother were also detained and later went into exile. That experience helped consolidate her profile as a human rights defender.
After leaving the Chilean presidency, Bachelet took on high-level positions within the United Nations system. She first led UN Women and later served as the Office of the United Nations High Commissioner for Human Rights between 2018 and 2022.
From that position, she played an active role in denouncing human rights abuses and violations in different countries, including both left-wing and right-wing governments. Her reports on Venezuela, China, Nicaragua, and Afghanistan generated diplomatic tensions, but also strengthened her international image as a figure with experience in complex negotiations and political crisis management.
That trajectory is precisely one of the arguments now driving those who see her as a possible successor to Antonio Guterres starting in January 2027.
A Position of Great Symbolic Influence
Although it is often seen as one of the most important positions on the planet, the role of United Nations secretary-general has considerable limitations in terms of real power. The head of the United Nations does not govern countries, command armies, or impose decisions on the major powers.
The secretary-general’s main role is to act as a diplomatic mediator, political coordinator, and institutional voice of the international community. The secretary-general represents the UN before governments and often intervenes in armed conflicts, humanitarian crises, and multilateral negotiations.
However, the most important decisions within the United Nations depend on the Security Council, especially its five permanent members: United States, Russia, China, France, and United Kingdom. Each of those countries holds veto power, which considerably limits the secretary-general’s ability to act.
For that reason, many analysts believe the position carries more symbolic and diplomatic weight than executive authority. Even so, the secretary-general can influence the global agenda, apply political pressure on governments, and serve as an interlocutor during moments of international tension.
In recent decades, leaders such as Kofi Annan, Ban Ki-moon, and Antonio Guterres used the position to promote debates on human rights, poverty, migration, and climate change, although they frequently clashed with the geopolitical interests of the major powers.
The Possibility of a Woman Leading the UN
Since the creation of the United Nations in 1945, no woman has ever served as secretary-general. All secretaries-general have been men and, for the most part, the result of diplomatic agreements among power blocs.
Michelle Bachelet’s possible candidacy therefore appears as a historic opportunity to break with that tradition. Various international organizations and political sectors have spent years calling for the body to have a woman at its helm for the first time.
Beyond the gender factor, her possible appointment would also strengthen Latin America’s presence in global diplomacy. Latin America has not held the Secretary-General position since Peruvian diplomat Javier Perez de Cuellar, who led the UN between 1982 and 1991.
As the formal selection process approaches, Bachelet’s name is beginning to gain visibility in different international circles. Support from Gustavo Petro now adds new regional political backing to a candidacy that, while still unofficial, is already beginning to shift dynamics within global diplomacy.