There are three bands who share the name Riverside.
1. Riverside was a Polish progressive rock band from Warsaw, formed in 2001 by guitarist Piotr Grudziński, drummer Piotr Kozieradzki, bassist and vocalist Mariusz Duda, and keyboardist Jacek Melnicki. Melnicki left the group in 2003 and was replaced by Michał Łapaj. Following the death of Grudziński in 2016, the band continued as a trio before later collaborating with guitarist Maciej Meller, who became an official member in 2020. As of 2026, Riverside has released eight studio albums, three extended plays, four live albums, three compilation albums, and a number of singles.
Prior to the formation of Riverside, Kozieradzki had been a member of the death metal band Hate between 1990 and 2001, while Grudziński had performed with the band Unnamed from 1993 to 2003. The band's debut studio album, "Out of Myself", was released in Poland in 2003 and internationally in 2004. It was followed by the extended play "Voices in My Head" in 2005 and the studio album "Second Life Syndrome" later that year.
In 2007, Riverside released their third studio album, "Rapid Eye Movement". In 2008, Mariusz Duda began a solo project titled "Lunatic Soul". The band's fourth studio album, "Anno Domini High Definition", was released in 2009 and achieved commercial success in Poland. In 2011, Riverside issued the extended play "Memories in My Head". Their fifth studio album, "Shrine of New Generation Slaves", followed in 2013.
The sixth studio album, "Love, Fear and the Time Machine", was released in 2015 and achieved broader international chart performance compared to earlier releases. On 21 February 2016, Piotr Grudziński died of sudden cardiac arrest. The band subsequently canceled scheduled tour dates.