Definition
Non omne damnum inducit injuriam. A maxim of Latin legal origin meaning: not every loss produces a legal injury. The principle holds that a person may suffer harm, damage, or financial loss without thereby acquiring a legal remedy. For an actionable injury to exist, the loss must be one that the law recognizes as a legal wrong — not merely an unfortunate consequence of lawful conduct or the ordinary operation of commerce and competition.
The maxim operates as a limiting principle in tort and damages law. It draws a line between damnum (loss or harm in fact) and injuria (a legally cognizable wrong). Loss without injuria gives rise to no cause of action.
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Common Confusion
Non omne damnum is closely related to, and often confused with, the doctrine of damnum absque injuria — "loss without injury" or, more precisely, loss without legal wrong. The two are not identical. Non omne damnum is the maxim stating the general principle; damnum absque injuria is the doctrine that names the resulting legal outcome when the maxim applies. A researcher encountering either term in older materials should treat them as companion concepts: non omne damnum states the rule, damnum absque injuria describes the category of case to which the rule leads.
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Why It Matters in Research
This maxim appears frequently in historical treatises and older judicial opinions as a foundational limit on tort liability, particularly in cases involving economic harm, lawful competition, the exercise of legal rights, or acts authorized by statute. Its significance in a research corpus is primarily navigational: it signals that a court or treatise writer is about to explain why a plaintiff cannot recover despite having suffered actual loss.
When searching Law Mind's corpus, researchers should expect this maxim to surface in:
— Treatises on tort and damages, particularly discussions of the threshold between harm and legal injury.
— Cases involving business competition, where a defendant's lawful acts cause financial loss to a rival.
— Constitutional and statutory takings discussions, where property values decline without a compensable taking occurring.
— Early common law materials where the Latin form is used without English translation.
The central research trap is treating this maxim as synonymous with "no damages were proved." It says nothing about the measure or existence of provable loss. It says only that provable loss is not, by itself, sufficient to establish a legal wrong. A court invoking non omne damnum is making a legal threshold ruling, not a factual finding about damages.
Researchers should also note that the paired maxim — non omne quod licet honestum est ("not everything permitted is honorable") — appears in the same cluster of Bracton-derived materials and Digest citations. The two maxims address different problems: the first limits actionable injury; the second limits the moral inference from legal permission. They are frequently cited in proximity in historical sources, which can cause confusion in undifferentiated search results.
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Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) records the maxim in its Latin form — non omne damnum inducit injuriam — with attribution to Bracton, fol. 450, and renders it as: "It is not every loss that produces an injury." The entry is brief and definitional, presenting the maxim without extended analysis or example.
The paired maxim non omne quod licet honestum est appears immediately adjacent in Black's, cited to Dig. 50, 17, 144. Historical dictionary treatment of both maxims is consistent in form: Latin statement, English translation, source citation. Neither Black's nor the Digest entry attempts to work through the practical legal consequences of the principle, leaving that application to treatise literature and case law.
Bracton's attribution (fol. 450) places this principle deep in the foundational common law tradition. Researchers using historical sources should note that Bracton's treatment of damnum and injuria was influential across centuries of common law development and that later English and American courts frequently invoked the maxim without re-examining its Bractonian roots.
Historical dictionaries do not address the modern refinements to the damnum/injuria distinction that emerged in economic tort cases and regulatory takings doctrine. For those developments, treatise and case law research is essential.
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