The 2007 Northern Ireland Trophy was a professional ranking snooker tournament that took place between 4–11 November 2007 at the Waterfront Hall in Belfast, Northern Ireland. In his third round match against Ali Carter, Ronnie O'Sullivan completed a maximum break, one of five centuries that he completed in his 5–2 victory. Stephen Maguire won his first ranking tournament since 2004 by defeating Fergal O'Brien 9–5 in the final. This Maguire's third ranking title.