Carl Fredrik Mennander (sometimes modernised as "Karl Fredrik Mennander", often just "C.F. Mennander"; 19 July 1712, Stockholm, Sweden, 22 May 1786, Uppsala, Sweden) was a Swedish Lutheran clergyman. He was the Bishop of Turku between 1757-1775. He then served as the Church of Sweden Archbishop of Uppsala from 1775 until his 1786 death.