The 2007 Allstate Sugar Bowl was a college football bowl game, which formed part of the 2006–2007 Bowl Championship Series (BCS) of the 2006 NCAA Division I FBS football season. Played on January 3, 2007, in the Louisiana Superdome in New Orleans, it was the 73rd Sugar Bowl. The game matched the Notre Dame Fighting Irish against the LSU Tigers and was televised on Fox.

This game received extra attention because it was the return of the Sugar Bowl to New Orleans. In 2006, the game was played at the Georgia Dome in Atlanta, Georgia due to the damage caused by Hurricane Katrina to the Superdome (that game also featured a virtual "home" team, the Georgia Bulldogs). LSU won the 2007 contest 41–14, tying the Notre Dame-LSU series at 5–5 (with LSU taking a 2–0 lead in bowl game meetings).

With the loss, Notre Dame lost a record-setting nine bowl games in a row,^[2] including losing their three BCS bowl games by wide point margins.^[2]

Neither team has returned to the Sugar Bowl. However, LSU has played three national championship games in the Superdome since, defeating Ohio State for the 2007 BCS title, losing to Alabama for the 2011 BCS crown, and defeating Clemson in the College Football Playoff title game following the 2019 season. LSU also defeated Tulane in a 2007 regular season game in the Superdome.

LSU and Notre Dame met in the 2014 Music City Bowl and 2018 Citrus Bowl, with the Fighting Irish winning both. Brian Kelly, who led Notre Dame to those wins, became the Tigers' coach in 2022 after 12 seasons in South Bend.