Philemon may refer to either of the following:
- The Apostle Philemon, one of the Seventy Apostles (February 19).
- The Book of Philemon, a letter from St. Paul to the Apostle Philemon, included in the New Testament.
- Martyr Philemon of Alexandria, a saint who suffered under Diocletian in the late third century (December 14).
- Martyr Philemon of Cyzicus, one of the nine monk-martyrs at Cyzicus who were martyred at the end of the third century (April 29).