Saosin ( or ) is an American rock band formed in 2003 in Orange County, California. The group originally consisted of Beau Burchell, Justin Shekoski, Zach Kennedy and Anthony Green. Their debut EP, Translating the Name, was released in the same year. However, Green departed from the band for personal reasons, leading to Cove Reber joining as vocalist in 2004. With Reber, the band released their self-titled debut album in 2006 under Capitol Records.

Their second studio album, In Search of Solid Ground, was released in 2009 under Virgin Records, featuring re-recorded tracks from their previous EP, The Grey EP. Reber left the band in 2010, prompting a hiatus. Saosin reunited in 2013 with all original members except Kennedy, and began touring again. In 2016, they released their third studio album, Along the Shadow, marking the return of Green to the lineup. The album was released through Epitaph Records.

Saosin's musical style is often associated with emo and post-hardcore music, and the band is known for their vocal harmonies and distinctive lead guitar techniques, such as delays and natural harmonics. The band has undergone several lineup changes, leaving Burchell as the only consistent member of the band since its inception.