Celtic Thunder is a Celtic music group, composed of five Celtic male soloists who perform both solo and ensemble numbers. Celtic Thunder debuted in August 2007 at the Dublin City University in Dublin, Ireland.

Celtic Thunder is known for its eclectic style with songs ranging from a soloist to an ensemble focus. The group is backed by the Celtic Concert Orchestra, and their live shows are known for the use of dramatic effects via lighting and choreography as well as a stage set resembling an ancient stone pathway suggestive of those referenced in Celtic lore.