Knut Nystedt (September 3rd, 1915 - December 8th, 2014) was a Norwegian orchestral and choral composer from Oslo, Norway. Nystedt was born in Kristiania (now Oslo), Norway, and grew up in a Christian home where hymns and classical music were an important part of everyday life. His major compositions for choir and vocal soloists are mainly based on texts from the Bible or sacred themes.
Old church music, especially Palestrina and Gregorian chants, have had a major influence on his compositions. He studied with among others.
Nystedt was organist in Torshov kirke (Torshov.