Équinoxe (French pronunciation: [ekinɔks], English: Equinox) is the fourth studio album by French electronic musician and composer Jean-Michel Jarre, released in December 1978 on the Dreyfus record label, licensed to Polydor Records for its worldwide distribution in 1979. The album featured two singles: "Équinoxe Part 4" and "Équinoxe Part 5", the latter having more success reaching No. 45 on the UK Singles Chart. It reached number 11 on the UK Album Chart and number 126 on the US Billboard 200 chart.