Laïko or laïkó is a Greek music genre composed in Greek language in accordance with the tradition of the Greek people. Also called "folk song" or "urban folk music", in its plural form is a Greek music genre which has taken many forms over the years. Laïkó followed after the commercialization of Rebetiko music. It is strongly dominated by Greek folk music and it is used to describe Greek popular music as a whole. When used in context, it refers mostly to the form it took in the period from the 1950s to the 1980s.

The music of Greece is as diverse and celebrated as its history. Greek music separates into two parts: Greek traditional music and Byzantine music. These compositions have existed for millennia: they originated in the Byzantine period and Greek antiquity; there is a continuous development which appears in the language, the rhythm, the structure and the melody. Music is a significant aspect of Hellenic culture, both within Greece and in the diaspora.