Porcupine Tree (en français : "L'arbre à porc-épic") est un groupe britannique de rock progressif formé à Hemel Hempstead en Angleterre dans les années 1980. Dans un premier temps comme une expérimentation en solo du guitariste, chanteur et compositeur Steven Wilson, le groupe est aujourd'hui formé de quatre musiciens. L'album le plus vendu à l'heure d'aujourd'hui est Deadwing sorti en 2005
Lightbulb Sun, How Is Your Life Today ?, Four Chords That Made A Million, Shesmovedon, Last Chance To Evacuate Planet Earth Before It Is Recycled, The Rest Will Flow, Hatesong, Where We Would Be, Russia On Ice, Feel So Low,
Nil Recurring
Nil Recurring, Normal, Cheating The Polygraph, What Happens Now?,
Fear of a Blank Planet
Fear Of A Blank Planet, My Ashes, Anesthetize, Sentimental, Way Out Of Here, Sleep Together,
Arriving Somewhere
Deadwing
Deadwing, Shallow, Lazarus, Halo, Arriving Somewhere But Not Here, Mellotron Scratch, Open Car, Start of Something Beautiful, Glass Arm Shattering, Shesmovedon [*],
Bornlivedie, Signify, Sleep of No Dreaming, Pagan, Waiting Phase One, Waiting Phase Two, Sever, Idiot Prayer, Every Home Is Wired, Intermediate Jesus, "Light Mass Prayers", Dark Matter,
Stupid Dream (CD + DVD Audio)
Even Less, Piano Lessons, Stupid Dream, Pure Narcotic, Slave Called Shiver, Don't Hate Me, This Is No Rehearsal, Baby Dream In Cellophane, Stranger By The Minute, A Smart Kid, Tinto Brass, Stop Swimming,
In Absentia
Blackest Eyes, Trains, Lipe Of Ashes, The Sound Of Muzak, Gravity Eyelide, Wedding Nails, Prodigal, 3, The Creator Has A Mastertape, Heartattack In A Lay By, Strip The Soul, Collapse The Light Into Earth,