May 2021 | |
| 1st | St Joseph the Worker |
| 2nd | 5th Sunday of Easter |
| 3rd | Feast of St Philip and St James, Apostles |
| 4th | The English Martyrs |
| 5th | St Asaph, Bishop |
| 9th | 6th Sunday of Easter |
| 12th | St Nereus & St Achilleus, Martyrs St Pancras, Martyr |
| 13th | Solemnity of the Ascension of the Lord |
| 14th | St Matthias |
| 16th | 7th Sunday of Easter |
| 18th | St John I, Pope, Martyr |
| 19th | St Dunstan, Bishop |
| 20th | St Bernardine of Siena, Priest, Religious, missionary |
| 21st | St Christopher Magallanes, Priest, & companions, Martyrs |
| 22nd | St Rita of Cascia, Religious |
| 23rd | Pentecost Sunday |
| 24th | Mary, Mother of the Church |
| 25th | St Bede the Venerable, Priest, Doctor of the Church Gregory VII, Pope St Mary Magdalene de'Pazzi, Virgin |
| 26th | St Philip Neri, Priest |
| 27th | Feast of Our Lord Jesus Christ, Eternal High Priest |
| 29th | St Paul VI, Pope |
| 30th | The Most Holy Trinity |
| 31st | Feast of the Visitation of the Blessed Virgin Mary |