Res inter alios acta alteri nocere non debet
By: Lkite Fisayomi.
This Latin maxim means “A transaction or matter between others ought not to harm a third party.” In legal terms, it protects individuals from being adversely affected by agreements, judgments, or conduct between other parties to which they were not a party.
For example, if two parties settle a case or make a contract, a third person—who had no role or consent in that process—cannot be bound by or prejudiced by the outcome. It reinforces the principle of fairness and the importance of consent and participation in legal obligations.
See Harold V. Tamargo vs. Romulo Awingan, et al. G.R. No. 177727, January 19, 2010, Third Division, Corona, J.
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