Mary-ann Estrada Villarosa

As Punong Barangay of Barangay Magsaysay, Mary-ann Estrada Villarosa presides over the Sangguniang Barangay of the barangay in Libjo, Dinagat Islands, serving the 2023 - 2026 term. The Punong Barangay is a nationally recognised local government position under the Local Government Code of 1991 (Republic Act No. 7160).

As the head of the smallest tier of Philippine local government, the Punong Barangay is responsible for everything from maintaining peace and order within the barangay to supervising the Barangay Development Plan, enforcing national and local laws within the barangay boundaries, and representing residents in the wider city or municipal government. The position is held for a four-year term under Republic Act No. 12232.

Barangay Magsaysay is one of 16 barangays in the municipality of Libjo, in the province of Dinagat Islands, in the Caraga region of the Philippines. According to the 2020 Census of Population and Housing, Barangay Magsaysay had a population of 559 residents — the constituency that Mary-ann serves as Punong Barangay. Dinagat Islands is classified as a 4th by the Bureau of Local Government Finance.

Barangay officials in the Philippines are elected during the synchronised Barangay and Sangguniang Kabataan Elections (BSKE). Mary-ann currently holds office under the mandate established by the October 30, 2023 BSKE. The next BSKE, at which this position will again be contested, is scheduled for Monday, November 2, 2026.

The Sangguniang Barangay — which Mary-ann Estrada Villarosa leads — is the legislative body of a Philippine barangay. It passes barangay ordinances and resolutions, approves the annual barangay budget, and exercises oversight over the barangay's programmes and projects. Its composition includes the Punong Barangay, seven kagawads, the SK Chairperson, a Secretary, and a Treasurer, all accountable directly to residents.