Greece participated in the Eurovision Song Contest 2018 with the song "Oniro mou" written by Aris Kalimeris, Dimitris Stamatiou, Yianna Terzi and Mihalis Papathanasiou and performed by Terzi. A national final was scheduled to be held in order to select the Greek entry for the 2018 contest in Lisbon, Portugal. Five entries were to compete in the final on 22 February 2018 where public voting would exclusively select the winner, however "Oniro mou" performed by Terzi was announced as the Greek entry on 16 February 2018 following the disqualification of four out of the five national final entries.

"Oniro mou" is a song performed by Greek singer Yianna Terzi. The song was released as a CD single and digital download on 15 February 2018 through Panik Records, and was written by Terzi along with Aris Kalimeris, Dimitris Stamatiou, and Mihalis Papathanasiou. It represented Greece in the Eurovision Song Contest 2018.