Michael Trent Reznor (born May 17, 1965) is an American singer-songwriter, multi-instrumentalist, and producer. Leader of the industrial rock band Nine Inch Nails and currently a member of How to Destroy Angels, he was previously associated with bands Option 30, Exotic Birds, and Tapeworm, among others. Reznor left Interscope Records in 2007, and is now an independent musician.

Reznor began creating music early in his life, and cites his Western Pennsylvania childhood as an early influence. After being involved with a number of synthesizer-based bands in the mid-80s, Reznor gained employment at Right Track Studios and began creating his own music during the studio's closing hours under the moniker Nine Inch Nails. Reznor's first release as Nine Inch Nails, Pretty Hate Machine (1989), was a commercial success, and he has since released seven major studio releases. Outside of Reznor's chief project Nine Inch Nails, he has contributed to many other artists' albums, including Marilyn Manson and Saul Williams. In 1997, Reznor appeared in Time magazine's list of the year's most influential people, and Spin magazine described him as "the most vital artist in music."

Reznor, in collaboration with Atticus Ross, composed the score for The Social Network, a 2010 theatrical film about the founding of Facebook. The duo won the 2010 Golden Globe for Best Original Score for their collaboration and have been nominated for an Academy Award for Best Original Score. The soundtrack album was released by The Null Corporation, Reznor's own independent record label. Earlier this year, Reznor announced that the pair would once again be collaborating with David Fincher by composing the score to the US film adaptation of the bestselling novel The Girl with the Dragon Tattoo, set for release in late 2011.