Steven John Wilson (born 3 November 1967) is a Grammy nominated English musician and producer, most associated with the progressive rock genre. Currently a solo artist, he is best known as the founder, lead guitarist, singer and songwriter of the band Porcupine Tree, but is also a member of several other bands and has worked with artists such as Opeth, King Crimson, Pendulum, Jethro Tull, XTC, Yes, and Anathema.

Wilson is a self-taught producer, audio engineer, guitar and keyboard player, playing other instruments as and where required (including bass guitar, autoharp, hammered dulcimer and flute). He currently lives in Hemel Hempstead, the town he grew up in, but has also spent time living in London and Tel Aviv, Israel.