Orri Páll Dýrason (Icelandic pronunciation: [ˈɔrːɪ ˈpʰautl ˈtiːrasɔn]; born on 4 July 1977) is an Icelandic musician. He was previously the drummer for Sigur Rós. He joined the band in 1999, shortly after the recording of the studio album Ágætis byrjun, when the previous drummer, Ágúst Ævar Gunnarsson, left the band.
Orri has recorded five studio albums with Sigur Rós: ( ) (2002), Takk... (2005), Með suð í eyrum við spilum endalaust (2008), Valtari (2012), and Kveikur (2013). He also contributed to Hvarf/Heim (2007), where "Hvarf" contains studio recordings of previously unreleased songs.