Haris Alexiou (Greek: Χάρις Αλεξίου, born 27 December 1950 in Thebes, Greece as Hariklia Roupaka, Greek: Χαρίκλεια Ρουπάκα) is a Greek singer. She is one of the most popular singers in Greece and has been commercially successful since the 1970s. She has worked with important Greek songwriters and composers, has performed at top musical theatres all over the world, and has received several awards. She has recorded over thirty albums and has been featured on albums of other musicians. Eight of her personal albums released between 1977 and 2003 have surpassed 1.5 million sales, the only Greek female singer to do so.

From Greece to Australia, from Russia to Africa, from America to Japan, Haris Alexiou travels around and shows the world the feelings of the Greek song. She firmly believes that Greek songs, through their poets and composers, made her love and better understand the history and the culture of her country.

Since late 2022, Alexiou has appeared as the grandmother Haris in the Greek television series Maestro in Blue on Mega Channel in Greece and Netflix worldwide.