Heidi Macaraan Lloce-Mendoza (born November 3, 1962) is the Undersecretary General for the United Nations Office of Internal Oversight.
A Filipino public official, Mendoza was commissioner and officer-in-charge of the Commission on Audit of the Philippines from 2011 to 2015.
On October 6, 2015, Mendoza was nominated by UN Secretary-General Ban Ki-moon to head the United Nations Office of Internal Oversight Services replacing Canadian Carman Lapointe.
Mendoza has also served as an external auditor for the Food and Agriculture Organization, World Health Organization and International Labour Organization.