Short answer. Only in narrow circumstances. Losing is not enough. Article 204 of the Revised Penal Code punishes a judge who knowingly renders an unjust judgment, and Article 205 covers a manifestly unjust judgment rendered through inexcusable negligence or ignorance. An error you disagree with is corrected by appeal, not by prosecution.

What the law says

Any judge who shall knowingly render an unjust judgment in any case submitted to him for decision, shall be punished by prision mayor and perpetual absolute disqualification

Revised Penal Code, Article 204 — Knowingly Rendering Unjust Judgment. Read the full provision →

The word that decides it: 'knowingly'

Article 204 does not punish a wrong judgment. It punishes a judge who knowingly renders an unjust one — that is, who understood that what he was deciding was contrary to law or unsupported by the evidence and decided it that way regardless. This is a state of mind, and it has to be proved like any other element. Dissatisfaction with how the judge weighed a witness, read a document or applied a rule does not supply it. The penalty reflects how serious the accusation is: prisión mayor together with perpetual absolute disqualification, which ends the judge's career permanently.

Article 205: negligence and ignorance

Article 205 covers the judge who, by reason of inexcusable negligence or ignorance, renders a manifestly unjust judgment. It carries the lighter penalty of arresto mayor and temporary special disqualification. Both adjectives are doing real work. "Inexcusable" means more than a debatable reading of the law, and "manifestly" means the injustice has to be evident on the face of the judgment rather than arguable. This is why a complaint of this kind is difficult where the point decided was genuinely contestable, or where higher courts have themselves differed on it. A ruling that is simply reversed on appeal is not, by that fact, a crime.

Appeal first — for a practical reason

The route that actually fixes a wrong decision is the ordinary one: a motion for reconsideration, then an appeal or petition to the higher court, within the period allowed. Those periods are short and are not suspended while you consider other options, so a complaint against the judge that is filed instead of an appeal usually leaves you with a judgment that has become final. There is also a separate administrative track for judicial misconduct, which is distinct from a criminal charge and is directed at the judge's fitness rather than at your case. Neither track reopens a decision that has already lapsed into finality.

Before you accuse a judge of a crime

Be clear-eyed about what such a complaint requires. You will need the record — the judgment itself, the evidence actually before the court, and something showing that the judge acted against what he knew or could not excusably have missed. Suspicion, an adverse pattern of rulings, or the fact that the other side won will not stand in for that. A complaint that fails can also expose the complainant to consequences of its own. Nothing here predicts an outcome; if you believe a decision was corrupt rather than merely wrong, take the complete record to counsel promptly, because the appeal clock is running at the same time.

Related provisions

Note. Statute text quoted on this page is reproduced from the official enactment and is linked to the full provision. The explanation around it is general legal information from Vivas & Nobles Law Office, not legal advice. Whether it applies to your situation depends on facts only a lawyer reviewing them can assess.