Chai Key is a music band from Chicago, IL USA. The style of the music is self-described as Post-Rock Indie, and inspiration has been drawn from such artists as Moby, Blonde Redhead, Yuri Naumov, Lana Del Rey, Depeche Mode, Radiohead, Led Zeppelin, Jimi Hendrix.

The band was founded in 2012 by three Russian-speaking immigrants Maxim and Tania Sokolov, and Sergey Pavlov, and has been involving various other musicians for live performances. Their songs are both in English and in Russian. In 2018 the band released their first EP disk with five original songs. A full album is expected some time in 2020.