Heyday is the fourth album by the Australian alternative rock band The Church, released in November 1985. The album marked the first occasion when group compositions dominated one of the band's releases. Steve Kilbey has said: "The demo situation was getting to us - me writing the songs on my eight-track and bringing them along to the band. It sounded too stiff. We'd reached this new energy level on stage which by far superseded anything we'd ever recorded, so we knew the only way to get sounding like that was for the whole band to write together."

The Church are an Australian rock band formed in Sydney in 1980. Initially associated with new wave, neo-psychedelia, and indie rock, their music later came to feature slower tempos and surreal soundscapes reminiscent of alternative rock, dream pop, and post-rock. Glenn A. Baker has written that "From the release of the 'She Never Said' single in November 1980, this unique Sydney-originated entity has purveyed a distinctive, ethereal, psychedelic-tinged sound which has alternatively found favour and disfavour in Australia." The Los Angeles Times has described the band's music as "dense, shimmering, exquisite guitar pop".