"So Mystifying" is a song written by English musician Ray Davies, first recorded by his band the Kinks for their 1964 debut album Kinks. It appears as the second track on side one, following "Beautiful Delilah", and is the first track on the album on which Ray Davies performs the lead vocals. The best known version of the song was recorded by Swedish rock group Hep Stars, whose version of the song reached the top-five on both Kvällstoppen and Tio I Topp in 1965.

Kinks is the debut studio album by the English rock band the Kinks. It was released on 2 October 1964 in the United Kingdom by Pye Records. The original United States release, issued by Reprise Records on 25 November 1964, omits three tracks and is instead titled You Really Got Me.