Nikos Aliagas (Greek: Νικόλαος "Νίκος" Αλιάγας, Nikólaos "Níkos" Aliágas; born 13 May 1969) is a Greek-French journalist and entertainer, known for being the host of the French reality program Star Academy and The Voice – La plus belle voix.

His father comes from the area of Stamna in Aetolia-Acarnania while his mother comes from Messolonghi, located in the same regional unit in Greece.

He has published a book called I was born Greek: The mythology or The school of life (Greek: Γεννήθηκα Έλληνας: Η Μυθολογία Ή Το Σχολείο Της Ζωής).

He was the presenter of a show on Alpha TV called Gros Plan where he met international stars like Celine Dion, Jean Paul Gaultier, Sylvester Stallone and Helena Paparizou.

He is multilingual, being able to speak French, Greek, English, Spanish and Italian.