Frederica Mathewes-Green (born October 27, 1952) is an American author and speaker, chiefly on topics related to Eastern Orthodox belief and practice. Mathewes-Green earned a MTS degree from Virginia Theological Seminary in 1977 and received an honorary Doctor of Letters from King University in 2019. She and her family converted to Orthodoxy from the Episcopal Church in 1993. Mathewes-Green is married to Rev. Gregory Mathewes-Green. The couple live in Johnson City, Tennessee. They have three grown children and fifteen grandchildren.