Celtic punk is punk rock mixed with traditional Celtic music.
Celtic punk bands often play traditional Irish, Welsh or Scottish folk and political songs, as well as original compositions. Common themes in Celtic punk music include politics, Celtic culture and identity, heritage, religion, drinking and working class pride.
The genre was popularized in the 1980s by The Pogues.
The term Celtic punk is usually used to describe bands who base their music in Irish or Scottish traditional music. It is considered part of the broader folk punk genre, but that term tends to be used for bands that use English, American and other forms of folk music as inspiration.