"Rusty Nail" is the tenth single by Japanese heavy metal band X Japan, released on June 10, 1994.

It was written and composed by Yoshiki, later appeared on the album Dahlia, and was used as the theme song for the 1994 Japanese TV drama Kimi ga Mienai (君が見えない).

[1] A new version of "Rusty Nail" was reportedly recorded for X Japan's unreleased studio album,[2] before it was decided to create entirely new material instead.

Directed by Aaron Platt and mainly shot as the band performed live on top of the Kodak Theatre in Hollywood, California in January 2010,[8] it has the sound of the audience added to the audio.

Yoshiki revealed that a part of "Rusty Nail" inspired his 2018 song "Red Swan", which was a collaboration with Hyde.