"Rock and Roll Preacher (Hallelujah I'm on Fire)" is a song by the British rock band Slade, released in 1982 as the fourth and final single from their tenth studio album Till Deaf Do Us Part. It was written by lead vocalist Noddy Holder and bassist Jim Lea, and produced by Slade. The song was released as a single in Germany only, where it peaked at No. 49.

Following their revival after their performance at the 1980 Reading Festival, Slade signed a deal with RCA Records the following year. In November 1981, the band released the album Till Deaf Do Us Part. After the March 1982 release of the third single, "Ruby Red", RCA and the band chose to release "Rock and Roll Preacher (Hallelujah I'm on Fire)" as a single in Germany only. For its release as a single, the near-six-minute album version of the song was cut down to just over three minutes. The editing of the song was handled by Lea, Holder and drummer Don Powell in January 1982. The song would reach No. 49 in the German charts.

For Slade's live-shows, the song would become the band's regular opener and would later appear as the opening track on the band's 1982 live album Slade on Stage.

"Rock and Roll Preacher (Hallelujah I'm on Fire)" was released on 7" and 12" vinyl by RCA in Germany only. The B-Side, "Knuckle Sandwich Nancy", was taken from Till Deaf Do Us Part and had been the album's failed lead single in May 1981. The 12" vinyl version of the single was Slade's second release on 12" vinyl. It featured the full-length album version of "Rock and Roll Preacher (Hallelujah I'm on Fire)" as the A-Side.

In Germany, the band performed the song on the TV show Musikladen on 11 March 1982. Later in December 1984, the band would perform the song again on the German ZDF show Thommys Pop Show.

Upon release, Kerrang!, in a review of Till Deaf Do Us Part, stated: "Holder's in fine fettle as he squats in the pulpit for "Rock and Roll Preacher". Recorded with a minimum of fuss, this track comes close to capturing the feelings of Slade live, Holder chortling wickedly through every line." In a retrospective review, Geoff Ginsberg of AllMusic commented: "The opener, "Rock and Roll Preacher," features Noddy Holder praying at the altar of rock & roll. This number is so blistering, one wonders just how heavy these guys can get. Answer: very." In a 1986 Slade fan club opinion poll, fans voted the song at No. 1 of the band's three best album tracks. The song was also voted No. 2 of the band's three best live songs.

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