Terje "Valfar" Bakken (3 September 1978 – 14 January 2004) was the lead singer and founder of the Norwegian black metal band Windir.

Windir was started as a one-man project, but it was expanded into a full band with the release of their third album, 1184.

Valfar originally sang his lyrics in Sognamål, a dialect of Norwegian, but eventually switched to English in an attempt to appeal to a broader audience.

Despite his vocal style, Valfar did not relate his music to black metal, probably because of how the scene acted and was stereotyped.

Other bands that have a Sognametal sound are Cor Scorpii, Vreid, Feigd, Mistur, and Sigtyr.