The Big Express is the seventh studio album by the English rock band XTC, released on 15 October 1984 by Virgin Records. It is an autobiographical concept album inspired by the band's hometown of Swindon and its railway system, the Swindon Works. In comparison to its predecessor Mummer (1983), which had a modest, pastoral approach to production, the album features a bright, uptempo sound marked by studio experimentation and denser arrangements, setting a template that they further developed on subsequent albums.

XTC were an English rock band formed in Swindon in 1972. Fronted by songwriters Andy Partridge and Colin Moulding, the band gained popularity during the rise of punk and new wave in the 1970s, later playing in a variety of styles that ranged from angular guitar riffs to elaborately arranged pop. Partly because the group did not fit into contemporary trends, they achieved only sporadic commercial success in the UK and US, but attracted a considerable cult following. They have since been recognised for their influence on post-punk, Britpop and later power pop acts.