Heidi Mendoza

Heidi Mendoza
Mendoza in 2015
Under-Secretary-General for the United Nations Office of Internal Oversight Services
In office
November 11, 2015 – October 17, 2019
Preceded byCarman Lapointe
Succeeded byFatoumata Ndiaye
Officer in Charge of the Commission on Audit
In office
February 3, 2015 – March 25, 2015
PresidentBenigno Aquino III
Preceded byGrace Pulido-Tan (chairperson)
Succeeded byMichael Aguinaldo (chairperson)
Commissioner of the Commission on Audit
In office
April 18, 2011 – November 11, 2015
Serving with
PresidentBenigno Aquino III
Preceded byEvelyn San Buenaventura
Succeeded byIsabel Dasalla-Agito
Personal details
BornHeidi Reyes Lloce
(1962-11-03) November 3, 1962
Tayabas, Quezon, Philippines
PartyIndependent
SpouseMeynardo dela Paz Mendoza
Alma mater
OccupationCertified Public AccountantAuditor • Anti-corruption advocate
ProfessionAccountant
Known forWhistleblower in the 2011 AFP corruption scandal
Former COA Commissioner
Former UN Under-Secretary-General for Internal Oversight Services
AwardsYahoo! 2011 Modern Day Hero
Accountancy Centenary Award of Excellence (2023)
Outstanding Professional Award (2024)
WebsiteHeidi Mendoza
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Heidi Reyes Lloce-Mendoza (born November 3, 1962) is a Filipino auditor, Certified Public Accountant, and former civil servant known for her advocacy against corruption and for governance reforms. Mendoza previously served as one of the two commissioners of the Commission on Audit (COA) from 2011 to 2015, and was the agency's Officer in Charge (OIC) from February to March 2015. She later became the Under-Secretary-General of the United Nations Office of Internal Oversight Services (OIOS) from 2015 to 2019, becoming the first Filipino to hold that specific high-level position in the United Nations.

Mendoza gained prominence as a whistleblower in the 2011 Armed Forces of the Philippines corruption scandal, exposing irregularities in military funds. She is the author of A Guide to Investigation & Common Procurement Fraud and Irregularities and has been recognized as a Yahoo! 2011 Modern Day Hero. In 2025, she ran as an independent candidate for the Philippine Senate, securing over 8.7 million votes but placing 21st overall.