Michael Davies (March 13, 1936 - September 25, 2004) was a British teacher, and traditionalist Catholic writer of many books about the Catholic Church following the Second Vatican Council. From 1992 to 2004 he was the President of the international Traditionalist Catholic organisation Una Voce and was responsible for the unification of the conservative Una Voce America.

He was brought up in Yeovil, Somerset, although he was said to be proud of his Welsh descent. He served as a regular soldier in the Somerset Light Infantry during the Malayan Emergency, the Suez Crisis, and the EOKA campaign in Cyprus.

Davies was an Anglican who converted to Catholicism when a student in the 1950s. He taught in Catholic schools for thirty years until retiring in 1992 to take up writing full time. Although an early supporter of the changes from Vatican II he later supported the French Archbishop Marcel Lefebvre, founder of the Society of St. Pius X, and declined to retract that support after Lefebvre's decision to consecrate four bishops in 1988 against the wish of Pope John Paul II. William D. Dinges, Professor of Religion and Culture at The Catholic University of America, describes Davies as "nternationally, one of the most prolific traditionalist apologists".