Legal Standing Definition and Importance

Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

The right of a party to bring a case before a court, based on having a sufficient connection to and harm from the law or action challenged.
What is the difference between standing and jurisdiction?
Can NGOs have standing in international courts?
What is erga omnes partes standing?

Law & RightsUpdated June 22, 2026

The right of a party to bring a case before a court, based on having a sufficient connection to and harm from the law or action challenged.

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In *The Gambia v. Myanmar* (2019), The Gambia invoked *erga omnes partes* obligations under the Genocide Convention to establish standing at the ICJ despite suffering no direct injury from the alleged genocide against the Rohingya.

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Legal standing (also called locus standi) is the threshold requirement a litigant must satisfy before a court will hear the merits of a dispute. It asks not whether a claim is right, but whether this particular party is the proper one to raise it. Standing doctrine prevents courts from issuing advisory opinions and channels disputes into adversarial form.

Standards vary sharply across jurisdictions:

United States. Under Article III of the Constitution, the Supreme Court in Lujan v. Defenders of Wildlife (1992) crystallized a three-part test: the plaintiff must show (1) a concrete and particularized injury in fact, (2) causation traceable to the defendant's conduct, and (3) redressability by a favorable ruling. Generalized grievances shared by all citizens are typically insufficient.
European Union. Article 263 TFEU allows natural and legal persons to challenge EU acts addressed to them, or acts of "direct and individual concern." The restrictive Plaumann test (Case 25/62, 1963) has long limited private applicants, though the Lisbon Treaty loosened it slightly for regulatory acts.
International courts. Before the International Court of Justice, only states have standing in contentious cases (ICJ Statute, Art. 34). The Court's 2012 Belgium v. Senegal judgment and the 1970 Barcelona Traction dicta on erga omnes obligations have expanded the circumstances under which a state may sue without showing direct injury.
Human rights bodies. The European Court of Human Rights requires applicants to be "victims" under Article 34 ECHR; the Inter-American system permits broader third-party petitions.

Standing intersects with justiciability, ripeness, and mootness. It also shapes which actors can drive public-interest litigation: many jurisdictions (India, South Africa, Kenya) have relaxed standing rules to permit actio popularis in constitutional cases, while others remain restrictive to preserve separation of powers.

Frequently asked questions

What is the difference between standing and jurisdiction?

Jurisdiction concerns a court's authority to hear a type of case; standing concerns whether a particular plaintiff is entitled to bring it. A court can have jurisdiction over a subject yet still dismiss for lack of standing.

Can NGOs have standing in international courts?

Rarely in contentious cases at the ICJ, which is limited to states. But NGOs regularly appear before the European Court of Human Rights, the Inter-American Court, and some UN treaty bodies, and may file amicus briefs elsewhere.

What is erga omnes partes standing?

It is the principle that any state party to a multilateral treaty protecting collective interests (e.g., the Genocide Convention) may invoke another party's responsibility for breach, even without direct injury, as recognized in Belgium v. Senegal (2012).