The UK Compilation Chart is a record chart based on sales of multi artist compilation albums in the United Kingdom. It is compiled weekly by the Official Charts Company (OCC), and each week's Top 40 is published online on the official websites of the OCC (Top 100), BBC Radio 1 and MTV, and in the magazines Music Week (Top 20) and UKChartsPlus (Top 50).
Though only accredited to compiling multi-artist compilation albums, the chart compiles all full-length various artist releases, not only when it involves a traditional compilation album of old recordings, but even when it's an original studio album by "various artists", whereby all the recordings are new. This is the case for example in motion picture soundtrack albums.