Maria Antonia "Toni" Jugo Yulo-Loyzaga is a Filipina government official who serves as the Secretary of the Department of Environment and Natural Resources.

[1] She attended the Ateneo de Manila University and gained a Bachelor of Arts in Political Science then went to Georgetown University in Washington D.C. where she obtained a master's degree in government, international relations.

[2] Yulo-Loyzaga served the chairperson of the International Advisory Board of the Manila Observatory from 2007 until 2016.

She was also a technical advisor for the Philippine Disaster Resilience Foundation and a member of the Senior Advisory Board of the Armed Forces of the Philippines' Command and General Staff College[3] chairperson where she worked to advance more scientific research on climate and disaster resilience.

Yulo-Loyzaga was appointed by President Bongbong Marcos as the Secretary of the Department of Environment and Natural Resources.