Mike Defensor

Mike Defensor
Defensor in 2022
Member of the Philippine House of Representatives for Anakalusugan
In office
June 30, 2019 – June 30, 2022
Malacañang Chief of Staff
In office
February 15, 2006 – February 10, 2007
PresidentGloria Macapagal Arroyo
Preceded byRigoberto Tiglao
Succeeded byJoey Salceda
28th Secretary of Environment and Natural Resources
In office
August 31, 2004 – February 15, 2006
PresidentGloria Macapagal Arroyo
Preceded byElisa Gozun
Succeeded byAngelo Reyes
1st Chairman of the Housing and Urban Development Coordinating Council
In office
January 20, 2001 – June 30, 2004
PresidentGloria Macapagal Arroyo
Preceded byKarina Constantino David
Succeeded byNoli de Castro
Member of the Philippine House of Representatives from Quezon City's 3rd district
In office
June 30, 1995 – January 20, 2001
Preceded byDennis Roldan
Succeeded byMaria Theresa Defensor
Member of the Quezon City Council from the 3rd district
In office
June 30, 1992 – June 30, 1995
Personal details
BornMichael Tan Defensor
(1969-06-30) June 30, 1969
Manila, Philippines
PartyReform PH (2024–present)
Other political
affiliations
See list
SpouseJulie Rose Tactacan
RelationsMiriam Defensor Santiago (aunt)
Arthur Defensor Jr. (second cousin)
Lorenz Defensor (second cousin)
Children5
Parents
EducationUniversity of the Philippines Diliman (BA, MPA)
Occupation
  • Politician
  • businessman
Criminal information
Criminal status
Incarcerated; awaiting trial
Criminal charge
Date apprehended
July 6, 2026
Imprisoned atNew Quezon City Jail

Michael Tan Defensor (Tagalog pronunciation: [dɪfɛnˈsɔɾ], born June 30, 1969) is a Filipino politician and businessman who served as the party-list representative for Anakalusugan from 2019 to 2022. He is also the chief executive officer of Pax Libera Mining, Inc.

A member of the Defensor political family, Defensor is the nephew of former senator Miriam Defensor Santiago. He began his political career in Quezon City, where he served as a member of the city council from 1992 to 1995. He was elected to the House of Representatives representing Quezon City's 3rd congressional district in 1995, becoming the youngest member of Congress at the time. As a congressman, he was a member of the "Spice Boys", who led congressional efforts to impeach President Joseph Estrada. The impeachment trial and the widespread protests of the Second EDSA Revolution in January 2001 resulted in Estrada's resignation and Vice President Gloria Macapagal Arroyo's accession to the presidency.

Defensor later served in various positions in the Arroyo administration, including chairman of the Housing and Urban Development Coordinating Council, Secretary of Environment and Natural Resources, and Malacañang Chief of Staff. He was also appointed to positions at Ninoy Aquino International Airport and the Philippine National Railways.

In 2019, he was elected again to the House of Representatives as the representative of the Anakalusugan party-list. He was among the 70 representatives who voted against the renewal of the ABS-CBN franchise. During the COVID-19 pandemic, he promoted and distributed the antiparasitic drug ivermectin as a possible prophylaxis and treatment for COVID-19, despite the lack of scientific evidence supporting its efficacy. In 2026, he and 18 other individuals drew controversy over their claims that kickbacks from flood control projects were being sent to several politicians and activists. Defensor unsuccessfully ran for senator in 2007 and for Mayor of Quezon City in 2010 and 2022.

Defensor was arrested on July 6, 2026, after the Sandiganbayan charged him with plunder and issued an arrest warrant in connection with an undeclared ₱75 million donation that he and two others allegedly made to Senator Rodante Marcoleta during the 2025 election campaign. He is currently awaiting trial.