"Synchronicity II" is a song by the Police, and the third single from their album Synchronicity. Written by lead singer and bassist Sting, it was released as a single in the UK and the US by A&M Records, reached No. 17 in the UK Singles Chart^[4] and No. 16 on the Billboard Hot 100 in December 1983.^[5] It features the non-album track "Once Upon a Daydream" on the B-side. The song was described by People Weekly as "aggressive" and "steely."^[6]

The song, which refers to Carl Jung's theory of synchronicity, nominally tells the story of a man whose home, work life, and environment are dispiriting and depressing. Lyrics refer to "Grandmother screaming at the wall", as well as "Mother chants her litany of boredom and frustration / But we know all her suicides are fake". The man is routinely denigrated by his boss ("and every single meeting with his so-called superior / Is a humiliating kick in the crotch") and ignored when he crosses a picket line; all the while "he knows that something somewhere has to break". Meanwhile, something monstrous is emerging from a "dark Scottish lake/loch", a reference to the Loch Ness Monster—a parallel to the father's own inner anguish.

Cash Box said the song "jumps with a contemporary rock drive" and praised Sting's vocal performance and Summers' and Copeland's "powerful" instrumental performances.^[17]

The music video for "Synchronicity II" was directed by Godley & Creme, filmed at a sound stage on the outskirts of London. In it the band are seen performing on top of giant piles of guitars, drums, junk, car parts, wires, with debris and papers flying about, with footage of Loch Ness appearing at three points. The band members stood apart from each other on separate towers made of scaffolding, wearing dystopian-inspired outfits. A misty and stormy appearance was created with air blowers and dry ice. Andy Summers is seen playing a Gittler guitar. During filming, Copeland's tower caught fire and the crew started to leave the building. Creme told the director of photography to keep the cameras rolling despite the danger.^[18]

• Sting – bass, vocals
• Andy Summers – guitar, keyboards
• Stewart Copeland – drums

Brazilian power metal band Angra recorded a cover of "Synchronicity II" for their 2014 album Secret Garden.