Azerbaijan in the Eurovision Song Contest 2018

Azerbaijan participated in the Eurovision Song Contest 2018 with the song "X My Heart" written by Dimitris Kontopoulos and Sandra Bjurman. The song was performed by Aisel, who was internally selected by the Azerbaijani broadcaster İctimai Television (İTV) to represent the nation at the 2018 contest in Lisbon, Portugal. Aisel's selection as the Azerbaijani Eurovision entrant was announced on 8 November 2017, while the song "X My Heart" was presented to the public on 4 March 2018.

Azerbaijan was drawn to compete in the first semi-final of the Eurovision Song Contest which took place on 8 May 2018. Performing as the opening entry for the show in position 1, "X My Heart" was not announced among the top 10 entries of the first semi-final and therefore did not qualify to compete in the final. This marked the first time that Azerbaijan failed to qualify to the final of the Eurovision Song Contest from a semi-final since its first entry in 2008. It was later revealed that Azerbaijan placed eleventh out of the 18 participating countries in the semi-final with 94 points.