Tempe (pronounced /tɛmˈpiː/ by local residents) is a city in Maricopa County, Arizona, USA, with a 2004 population estimate of 160,676. Darrell Duppa is usually credited with suggesting the name, adopted in 1879, after comparing the Salt River valley near a 300-foot-tall butte to the Vale of Tempe near Mount Olympus in Greece. Duppa also had the honor of giving name to Phoenix, 11 years earlier.

Tempe is a major suburb of Phoenix and is located immediately southeast. The upscale suburb of Scottsdale is immediately to the north of Tempe.

Tempe is the location of the head offices of US Airways (formerly America West Airlines) and the main campus of Arizona State University. It was the longtime host of the Fiesta Bowl, although the BCS game will move to Glendale in 2007. On New Year's Eve, the city hosts the Tostitos Fiesta Bowl Block Party, one of the nation's largest New Year's Eve parties. The event typically has a national band heading a concert, along with several other lesser known local bands. It was also the site of one of the three Presidential debates in 2004 and Super Bowl XXX. It is additionally the spring training host city of the Los Angeles Angels of Anaheim.