Độc tấu

• Mount A (as Lost in Hildurness) (12 Tónar 2006)
• Without Sinking (Touch 2009), với một bản đĩa vinyl có kèm các bài hát mở rộng năm 2011
• Mount A (as Hildur Guðnadóttir) (Touch 2010)
• Leyfðu Ljósinu (Touch, 2012), với một bản multi-channel trên USB
• Saman (Touch, 2014), với một bản đĩa vinyl

Hợp tác

• Rúnk – Ghengi Dahls (Flottur kúltúr og gott músik) 2001
• Mr. Schmucks Farm – Good Sound (Oral 2005)
• Stórsveit Nix Noltes – Orkídeur Hawai (12 Tónar/Bubblecore 2005)
• Angel and Hildur Guðnadóttir – In Transmediale (Oral 2006)
• Hildur Guðnadóttir with Jóhann Jóhannsson – Tu Non Mi Perderai Mai (Touch 2006)
• Nico Muhly – Speaks volumes (Bedroom Community 2006)
• Valgeir Sigurðsson – Equilibrium Is Restored (Bedroom Community 2007)
• Ben Frost – Theory of Machines (Bedroom Community 2006)
• Skúli Sverrisson – Sería (12 Tónar 2006)
• Pan Sonic – Katodivaihe/Cathodephase (Blast First Petite 2007)
• Múm – Go Go Smear the Poison Ivy (Fat Cat 2007)
• Hildur Guðnadóttir, BJ Nilsen and Stilluppsteypa – Second Childhood (Quecksilber 2007)
• Múm - Sing Along to Songs You Don't Know (Morr Music 2009)
• The Knife – Tomorrow, In a Year (2010)
• Wildbirds & Peacedrums – Rivers (The Leaf Label 2010)
• Sōtaisei Riron + Keiichirō Shibuya – Blue (Strings Edit) feat. Hildur Guðnadóttir (Commmons 2010)[22]
• Skúli Sverrisson – Sería II (Sería Music 2010)
• Hauschka – Pan Tone (Sonic Pieces 2011)
• Múm - Smilewound (Morr Music 2013)
• Craig Sutherland – Strong Island (2017)[23]
• Sunn O))) – Life Metal (2019)
• Sunn O))) – Pyroclasts (2019)