Alf Fasmer Dahl (20 May 1874 – 21 June 1933) was a Norwegian priest and composer.
He was born in Trondhjem as a son of vicar and composer Jonas Dahl (1849–1919) and Julie Marie Fasmer (1847–1925).
[1] Their daughter Pauline Mathilde "Titt" Fasmer Dahl became a children's writer.
[2] Another daughter Esther married professor of medicine Erik Waaler.
[3] He finished his secondary education in 1892, studied at the Royal Frederick University and graduated in 1898 with the cand.theol.