This article interprets the legacy of Horslips in a review of key periods of the Irish rock band’s activity and reception from the 1970s to the early 2020s. These comprise the band’s heyday in the 1970s, their relative obscurity in the 1980s and ’90s, two reunions as a live act in the early twenty-first century, and more recent fan-organized events. In tandem with an appraisal of the band’s career and broader artistic contribution, the article examines interrelated constructions of cultural memory and heritage on the part of musicians, cultural commentators, aficionados, and fans. It finds a range of associated identities and legacies that differ according to media-driven or community-oriented initiatives and to changing experiences and perspectives over time.