"The Uninvited Guest" is the second single from English band Marillion's fifth studio album Seasons End, released in 1989.

In a 1994 interview with the Marillion fan club newsletter The Web, Helmer revealed the song was inspired by the AIDS epidemic, saying: It is mainly about the unwanted disturbance of your life ...

In the eighties, everybody was more controlled and careful, and AIDS was basically the last straw: people were wary about with whom to share their table and bed.

People tried to hide from all of this by locking themselves in, which gave me spooky images of The Uninvited Guest, and as a matter of fact it could also be you, at a party, being the person nobody wanted to know.

[1]Upon single release Melody Maker reviewer Mick Mercer considered that the band's sound became very similar to Peter Gabriel style.