Album Solo

• De beste, 1986-2006 (2006) - Scandinavian greatest hits release
• Into Paradise (2006) - UK/USA release
• Nordisk Vinternatt (2005) - Scandinavian release

aka Nordic Winter Night

• My Heart (2003 in Norway, 2004 in USA, different songs on USA release)
• Sissel (2002) - USA release
• Sissel in Symphony (2001)
• All Good Things (2000)
• Fire In Your Heart (1998) - Japanese greatest hits release
• Innerst i sjelen (1994)

aka Deep Within My Soul - UK release

• Vestland, Vestland (1993) - Japanese release
• Gift Of Love (1992)
• Amazing Grace (1991) - Japanese release
• Soria Moria (1989)
• Glade Jul (1987)
• Sissel - Swedish release (1987)
• Sissel - Danish release (1987)
• Sissel (1986)

Soundtrack

• 37 1/2 soundtrack album (2005)
• Vanity Fair soundtrack album (2004)
• The Forsyte Saga soundtrack album (2002)
• Evelyn soundtrack album (2002)
• Flyvende Farmor soundtrack album (2001)
• Summer Snow soundtrack album (2000)
• Back to Titanic soundtrack album (1998)
• Long Journey Home soundtrack album - with The Chieftains (1998)
• Titanic soundtrack album (1997)
• The Adventures of Pinocchio soundtrack album (1996)
• Den lille havfruen soundtrack album (1990)

aka The Little Mermaid - the voice of Ariel for the Norwegian, Swedish and Danish versions

• Drømmeslottet soundtrack album (1986)

Album Natal

• Silent Night: A Christmas in Rome - with The Chieftains (1999)
• Julekonserten 10 år (1999)
• Julekonserten (1996)
• Vienna Noel (USA CD title) - with Plácido Domingo and Charles Aznavour (1995)

aka Christmas in Vienna III (European CD title)

• Julen är här - with Tommy Körberg (1989)
• Stilla Natt - Swedish release (1987)
• Glade Jul - Norwegian release (1987)

Album Lain

• "Venn (Friend)" - charity single written by Espen Lind and Lene Marlin, recorded with other Norwegian artists to raise money for Tsunami relief (2005)
• Ave Maria - duet with Bryn Terfel from Bryn Terfel Sings Favorites (2003)
• Sacred Songs - Sissel sings 2 songs with Plácido Domingo on his album (2002)
• Vinterbarn - Sissel sings one song with Proffene on their album Handsfree (2001)
• Elia Rising - single from Sort Sol's album Snakecharmer (2001)
• Siuil A Run - single from The Chieftains' album Tears of Stone (1999)
• Bacchianas Brasileiras - single from Gli Scapoli's album Everything Must Change (1998)
• Prince Igor - with Warren G, single from The Rapsody Overture (1998)
• LIVE - Sissel sings 3 songs with the Oslo Gospel Choir on their album (1990)
• Folket som danser - duet with Sigvart Dagsland on his album Seculum Seculi (1988)

Lagu

• Vårvise/Eg Ser - with Sebastian - Vinylsingle (1986)
• Kärleken/Vem - Vinylsingle (1987)
• Folket Som Danser/Eg Ser - with Sigvart Dagsland - Vinylsingle (1988)
• Pokarekare Ana/Amazing Grace - Vinylsingle (1989)
• Gift Of Love/Breakaway - 2 tracks (1992)
• Need I Say More/If - 2 tracks (1992)
• Breaking Up Is Hard To Do/Imagine¨- with Neil Sedaka - 4 tracks (1993)
• Se Ilden Lyse/Fire In Your Heart - 2 tracks (1994)
• Fire In Your Heart - with Placido Domingo - 3 tracks (1994)
• Eg Veit I Himmerik Ei Borg/remix - 3 tracks (1995)
• Mitt Hjerte Alltid Vanker - 1 track (1995)
• Prince Igor - with Warren G - 6 tracks (1998)
• One Day - Promosingle (2000)
• Better Off Alone - Promosingle (2000)
• Elia Rising - with Sort Sol - Promosingle (2001)
• Gå Inte Förbi - with Peter Jöback - 1 track (2003)
• Can't Go Back - 2 tracks (2003)
• O Tysta Ensamhet - Promosingle (2005)