Matthew Knight Arena, Multi-purpose arena in Eugene, Oregon, United States

Matthew Knight Arena is a 12,364-seat multi-purpose arena at the corner of Franklin Boulevard and Villard Street on the east side of the University of Oregon campus in Eugene. Its curved pale grey panel roof overhangs a tall glazed facade divided by white mullions, with a recessed entrance, small yellow signs and three flagpoles. Inside, the Kilkenny Floor of Canadian maple, designed by Tinker Hatfield, shows repeating silhouettes of Pacific Northwest tree lines.

Construction began on February 7, 2009, and the arena opened on January 13, 2011, when the Ducks beat the USC Trojans 68–62 before a sold-out crowd of 12,364. It replaced McArthur Court, the 1926 venue it succeeded. The building was named in December 2008 for Matthew Knight, son of Nike co-founder and chief donor Phil Knight, who died at 34 in a 2004 diving accident in El Salvador. The project cost $227 million.

The arena's Kilkenny Floor, designed by Nike's Tinker Hatfield, shows repeating silhouettes of Pacific Northwest tree lines and is named after former athletic director Pat Kilkenny. It honors the 1938–39 "Tall Firs" team that won the first NCAA basketball championship. Two artworks are installed: Janet Echelman's fishnet sculpture Allegory in the northeast corner and Jason Bruges Studio's interactive Gameshow at the west entrance.

The arena sits at Franklin Boulevard and Villard Street on the east side of campus, a gateway for arrivals from I-5. The lower bowl is steeper and closer to the court than at the old McArthur Court. Food and drink are sold at 50 stands in 20 locations, and 200 flat-screen televisions are mounted throughout, half along the concourses.

The center-hung scoreboard weighs 65,000 pounds and measures 32 by 36 feet, with four 20-by-12-foot HD LED screens; at opening it was the largest in college sports. It hangs from the ceiling on intersecting "O" logos. Two artworks are inside: Janet Echelman's net-like sculpture Allegory in the northeast corner and Gameshow, an interactive motion-capture installation by Jason Bruges Studio at the west entrance.