Steven (or Stephen) Wolf (or Wolfe, Woolfe, Wolff) may refer to:
- Stephen Wolf (born 1941), American businessman
- Steven Wolf (active since 1989), American musician and music producer
- Steven Woolfe (born 1967), British politician
- Steven J. Wolfe (born 1959), film producer
- Stephen Wolff, computer scientist
- Johnny Sins (born 1978), American pornographic actor
Stephen M. Wolf assumed his current position as chairman of R. R. Donnelley & Sons Company in March 2004. He has been the managing partner of Alpilles, LLC, since April 1, 2003. In April 2009 he became chairman of Trilantic Capital Partners, which was previously Lehman Brothers Merchant Banking. Before becoming managing partner of Alpilles, Wolf was chairman of US Airways. Wolf was chairman and chief executive officer of US Airways from January 16, 1996, until November 18, 1998, when he turned over his chief executive officer title to another executive. Wolf was responsible for the company's rebranding to US Airways from its previous identity, USAir. During Wolf's tenure, US Airways also placed an order for up to 400 Airbus A320-series narrow-body aircraft, with 120 firm orders at the time of the order signing; at the time, the order was regarded as the largest bulk aircraft request in history. Prior to joining US Airways, Wolf had served since 1994 as senior advisor to Lazard Frères. From 1987 until it was purchased by its employees in July 1994 he was chairman and chief executive officer of UAL Corporation and United Airlines, Inc.
Steven Wolf is a drummer, programmer, songwriter and music producer. His discography includes numerous gold, platinum, and Grammy winning records. He has worked with a range of artists including Alicia Keys, Katy Perry, Beyoncé, Annie Lennox, Miley Cyrus, Pink, Aretha Franklin, Avril Lavigne, Britney Spears, Celine Dion, Bee Gees, David Bowie, and Grover Washington, Jr.. Notable songs include Katy Perry's "I Kissed a Girl," Avril Lavigne's "Girlfriend", Miley Cyrus's "Wrecking Ball".
Steven Marcus Woolfe is a British politician, who has served as a Member of the European Parliament for the North West England region since the 2014 European election. Woolfe was considered a frontrunner in UKIP's 2016 leadership election, but was excluded from the race after submitting his nomination late. After Diane James resigned from the party leadership, Woolfe stood in the second UKIP leadership election of 2016, but withdrew from the contest and the party after he was allegedly injured during an altercation he engaged in with a fellow MEP. The event resulted in a media scandal for both individuals involved. Woolfe then subsequently resigned from UKIP in October 2016, describing the party as "ungovernable".
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