Ivar Thomassen (19 July 1954 – 30 November 2016) was a Norwegian folk singer, songwriter, and jazz pianist from Russenes in Porsanger, Norway.
From 1989 to 1997, when he worked as district musician in Vadsø, Thomassen seriously started to compose and perform folk songs.Theme in these ballads have included the county and the region's nature, culture and history. Songs like «Imella multebær og mygg» (In between cloudberries and mosquitos) and «Det artige landet» (The funny country) are frequently performed by local choirs and are well known among people from Finnmark. Thomassen was also active as a pianist in big bands and jazz ensembles, and contributed with his own compositions in this context. He did school concerts, arranged music, composed choral works and gave piano lessons. Thomassen lived in Alta and taught at the program for music, dance and drama at Alta High School. He also wrote the youth book Operasjon kråkereir (Operation crow's nest).
- 2003: Attmed Havet (Nordisc)
- 2011:Særlig Når Timan E Blå (Reflect)
- 2006: Attmed havet (Trane forlag) sheet music paperback
- 2007: Operasjon kråkereir (Trane forlag)
- SPELT – Visekubben i Tromsø at Viser.no (Norwegian)