Ilgar Mammadov (Azerbaijani: İlqar Məmmədov; born June 14, 1970) is an opposition politician in Azerbaijan, and one of the leaders of the Republican Alternative Party.

Mammadov was arrested on February 4, 2013, after traveling to Ismayilli, a town in Northern Azerbaijan in which there had been civil disturbance, following alleged repression by the local governor.

"[12] The Foreign Office of the United Kingdom also expressed concern, saying that they were "troubled by a number of aspects of the conduct of the trial which reinforce the impression that the verdicts were politically motivated.

[18] On December 5, 2017, the Committee of Ministers of the Council of Europe, for the first time in its history,[19] initiated infringement proceedings against the Republic of Azerbaijan for failing to comply with the ECHR judgment.

[20] On April 1, 2019, the ECHR unanimously held that there had been a violation of Article 46 § 1 of the European Convention on Human Rights, as the Republic of Azerbaijan had failed to fulfil its obligation to comply with the judgment.