Sunny Day Real Estate is an American emo band from Seattle, Washington, formed in 1992. The band currently consists of founding members Jeremy Enigk (vocals, guitar), Dan Hoerner (guitar) and William Goldsmith (drums), alongside Greg Suran (guitar), who originally played with the band between 2000 and 2001, and Chris Jordan (bass), who joined the band in 2022. Founding bass guitarist Nate Mendel was a member of the band during three of its four incarnations.

Sunny Day Real Estate were one of the early rock bands in the Midwest emo scene which they helped establish, despite not being from the Midwest themselves. In 1994, the band released their debut album Diary on Sub Pop Records to critical acclaim. However, shortly after recording their second album LP2, the band broke up. Rhythm section Mendel and Goldsmith joined Foo Fighters, while lead vocalist and guitarist Enigk embarked on a solo career.

In 1997, they regrouped long enough to record two more studio albums and a live album, but ultimately disbanded once again in 2001. The band reunited again in 2009. Bassist Nate Mendel, who chose to remain with Foo Fighters during the previous reunion in 1997, took part in this reunion. In a 2013 interview with MusicRadar, Mendel said Sunny Day Real Estate was inactive. According to Mendel, the band attempted to record a full-length album after the end of their reunion tour, but the sessions "just fell apart". In 2014 the band released one song from those sessions, "Lipton Witch," on a split 7-inch vinyl with Circa Survive on Record Store Day.

In January 2022, the band announced its third reunion, with Chris Jordan replacing Mendel on bass guitar. The band embarked on a tour with the Appleseed Cast in September 2022.