The following is a list of notable events and releases of the year 1975 in Norwegian music.

August

• 24 – Brita Bratland, traditional folk singer (born 1910).^[13]

November

• 30 – Paul Okkenhaug, composer and organist (born 1908).^[14]

January

• 13 – Rune Eriksen, black metal guitarist and composer, Mayhem.

March

• 4 – Mats Eilertsen, jazz upright bassist and composer.
• 9 – Øyvind Storesund, rock and jazz upright bassist, Cloroform and Kaizers Orchestra.
• 10 – Håvard Wiik, jazz pianist and composer, Atomic.
• 18 – Sondre Meisfjord, jazz bassist and cellist, and composer.
• 22 – Steinar Raknes, jazz upright bassist and composer.

April

• 9 – Bertine Zetlitz, pop singer.
• 12 – Lars Andreas Haug, jazz tubist and composer.
• 14 – Øystein Brun, black metal guitarist, Borknagar.
• 23
  • Helge Lien, jazz pianist, composer and band leader.
  • Rolf-Erik Nystrøm, saxophonist and composer.

May

• 1 – Aslak Hartberg, rapper and bass player.
• 2 – Alexander Stenerud, singer/songwriter.
• 15 – Frode Haltli, accordion player
• 19 – Geir Zahl, rock guitarist, Kaizers Orchestra.
• 20 – Bjarte Ludvigsen, drummer and record producer.

June

• 2 – Gisle Torvik, jazz guitarist and composer.
• 16 – Jannike Kruse, singer, artist and actor.

July

• 22 – Erik Johannessen, trombonist and composer.
• 28 – John Erik Kaada, singer-songwriter, producer and multi-instrumentalist.

August

• 1 – Håkon Mjåset Johansen, jazz drummer and composer.
• 2 – Lars Petter Hagen, contemporary composer and director of the Ultima Oslo Contemporary Music Festival.
• 7 – Kristian Eivind "Gaahl" Espedal, black metal vocalist and artist, God Seed, Wardruna, and Gaahls Wyrd).
• 12 – Robert Burås, vocalist, guitarist and songwriter, Madrugada and My Midnight Creeps, (died 2007).^[15]
• 27 – Janove Ottesen, rock vocalist, guitarist, and playing on barrels, Kaizers Orchestra.

September

• 15 – Andy LaPlegua, lead vocalist (Icon of Coil).
• 16 – Thomas "Pest" Kronenes, black metal vocalist (Gorgoroth).
• 26 – Håvard Jørgensen, songwriter, guitarist and vocalist (Satyricon and Ulver).

October

• 2 – Kåre Opheim, drummer (Real Ones).
• 10 – Vegard Sverre Tveitan, black metal vocalist, multi-instrumentalist, and composer (Emperor).
• 12
  • Espen Aalberg, jazz drummer.
  • Marianne Beate Kielland, Norwegian mezzo-soprano.
• 25 – Eirik Glambek Bøe, musician, writer and vocalist (Kings of Convenience).
• 26 – Ole Marius Sandberg, jazz upright bassist.
• 27 – Kate Havnevik, film score composer, songwriter and singer.

November

• 12 – Simen Eriksrud, songwriter and record producer.
• 20
  • Lars K. Hustoft, songwriter, record producer and artist manager.
  • Sigurd Wongraven, black metal vocalist, guitarist, bassist, and keyboardist (Satyricon).
• 21 – Erlend Øye, composer, musician, producer, singer and songwriter.
• 27 – Frode Nymo, jazz saxophonist.

Unknown date

• Ernst Simon Glaser, cellist and music teacher.
• Kolbjørn Lyslo, DJ, musician, and music producer.

• 1975 in Norway
• Music of Norway
• Norway in the Eurovision Song Contest 1975