The European Court of Human Rights (ECtHR), also known as the Strasbourg Court, is an international court of the Council of Europe which interprets the European Convention on Human Rights (ECHR). The court hears applications alleging that a contracting state has breached one or more of the human rights enumerated in the convention or its optional protocols to which a member state is a party. The court is based in Strasbourg, France.

The court was established in 1959 and decided its first case in 1960 in Lawless v. Ireland. An application can be lodged by an individual, a group of individuals, or one or more of the other contracting states. Aside from judgments, the court can also issue advisory opinions. The convention was adopted within the context of the Council of Europe, and all of its 46 member states are contracting parties to the convention. The court's primary means of judicial interpretation is the living instrument doctrine, meaning that the Convention is interpreted in light of present-day conditions.

International law scholars consider the ECtHR to be the most effective international human rights court in the world. Nevertheless, the court has faced challenges with verdicts not implemented by the contracting parties.

On 10 December 1948, the United Nations adopted the Universal Declaration of Human Rights, which aims to promote the universal recognition of rights set out therein, in order to strengthen the protection of human rights at the international level. While hugely important in setting a global standard for the first time, the declaration was essentially aspirational, and had no judicial enforcement mechanism. In 1949, the twelve member states of the newly created Council of Europe began work on the European Convention on Human Rights, drawing inspiration from the rights already set out in the Declaration, but with the crucial difference that—for the European countries which chose to sign up to it—there would be a judicial mechanism to ensure that they respected the basic rights of their citizens.

The court was established on 21 January 1959 on the basis of Article 19 of the European Convention on Human Rights when its first members were elected by the Parliamentary Assembly of the Council of Europe. Initially, access to the court was restricted by the European Commission of Human Rights, abolished in 1998. The court kept a low profile during its first years and did not accumulate much case law, first finding a violation in Neumeister v Austria (1968). The convention charges the court with ensuring the observance of the engagement undertaken by the contracting states in relation to the convention and its protocols, that is ensuring the enforcement and implementation of the European Convention in the member states of the Council of Europe.

The European Court of Human Rights, which enforces the European Convention on Human Rights, is the best known body of the Council of Europe. The Council of Europe (CoE) (French: Conseil de l'Europe, CdE) is an international organisation founded in the wake of World War II to uphold human rights, democracy and the rule of law in Europe. Founded in 1949, it now has 46 member states, covering a population of approximately 700 million, and operates with an annual budget of approximately 500 million euros.

The organisation is distinct from the 27-nation European Union (EU), although it is sometimes confused with it, partly because the EU has adopted the original flag of Europe created by the Council of Europe in 1955, as well as the anthem of Europe. No country has ever joined the EU without first belonging to the Council of Europe. The Council of Europe is an official United Nations observer.

The jurisdiction of the court has been recognised to date by all 46 member states of the Council of Europe. On 1 November 1998, the court became a full-time institution and the European Commission of Human Rights, which used to decide on admissibility of applications, was abolished by Protocol 11.