Justice Mariano C. Del Castillo is the Chief Justice of the Court of Appeals.
Justice del Castillo obtained his basic education from the Ateneo de Manila University, graduated with a degree in Bachelor of Arts, Major in Political Science (Second Honors) from the San Beda College, and in 1976, graduated from the Ateneo de Manila University College of Law with a degree of Bachelor of Laws. He passed the Bar Examination in the same year.
After 10 years of practice, he joined the Judiciary in 1989 as MTC Judge of San Mateo, Rizal, was promoted to RTC Judge of Angeles City in 1992, and in 1995, was named RTC Judge of Quezon City where he was appointed First Vice-Executive Judge until his appointment as Court of Appeals Justice in August 2001. Presently, he is a Senior Member of the 9th Division of the CA and a Contributing Editor of the Court of Appeals’ Journal.
He has held various positions in religious, civic and in NGOs and received various awards and distinctions. He was also active in the Philippine Judges Association where be became Director, VP for Admininstration, SVP and EVP prior to his promotion to the CA. He has lectured for the Philja and for the MCLE (C.L.A.S.S. and ChanRobles LawNet). He teaches Practice Court I and II at the Ateneo College of Law.
He is married to former Ateneo Law Dean Cynthia del Castillo with whom he has two children. He was born on July 29, 1949.
Other Information
- Name : Mariano C. Del Castillo
- Birthday : July 29, 1949
- Schools Attended :
- basic education, Ateneo de Manila University
- Bachelor of Arts, Major in Political Science (Second Honors),San Beda College (1976)
- Bachelor of Laws, Ateneo de Manila University, College of Law
- Spouse : Cynthia del Castillo
- Children : 2
Career Highlights
- Municipal Trial Court Judge of San Mateo, Rizal (1989)
- Regional Trial Court Judge of Angeles City (1992, and in 1995)
- Regional Trial Court Judge, Quezon City
- First Vice-Executive Judge
- Court of Appeals Justice (August 2001)
- Teaches Practice Court II to senior students, Ateneo College of Law
- Lectures, MCLE and Philja Seminars
- Philippine Judges Association, Director, Vice-President for Administration, Senior Vice-President, Executive Vice-President
Awards and Recognitions
- Best Performing Court of Appeals Justice for the year 2004 by the Rotary Club of Manila
- The Justice George A. Malcolm Award (First Place)

Dulce Ann Hofer
Norberto Gonzales
Jose Rene Almendras