"This Corrosion" is a song by the English rock band the Sisters of Mercy, released as the lead single from their second studio album, Floodland (1987), in September 1987.

"This Corrosion" was written by Andrew Eldritch and produced by Jim Steinman, and is one of the band's most well-known songs.

[4] The track was featured in the 2013 science-fiction comedy film, The World's End, with star Simon Pegg playing a 40-something who had been a "goth"/alternative rock fan in the 1980s as a youth who still styled himself on Eldritch.

All tracks are written by Andrew EldritchWhile none of the mixes have names, the 7", 12", CD and cassette versions of "This Corrosion" are all different.

The song has been covered by several artists, including: Since 2012, some Sisters of Mercy shows feature a guest appearance by Irish singer Lisa Cuthbert who performs her cover version of "This Corrosion" on piano.