Aniano Aguilar Desierto (born April 25, 1935) is a former Ombudsman of the Republic of the Philippines from 1995 to 2002.

[1] He headed the Ombudsman Office which investigates all government officials who defy the law of conduct.

He assumed the Office of the Philippine Ombudsman on August 4, 1995, as the second person to head the post.

He received his secondary education at the University of San Carlos (USC) in Cebu City, where he also obtained an Associate in Arts.

He later served as The Special Prosecutor of the Prosecution Bureau of the Office of the Ombudsman from April 1, 1991, to August 3, 1995.