- 4 August Jean-Marie Vianney
- 5 August Oswald of Northumbria
- 7 August John Mason Neale
- 8 August Saint Dominic
- 9 August Mary Sumner
- 10 August Lawrence of Rome
- 11 August Clare of Assisi
- 11 August John Henry Newman
- 13 August Jeremy Taylor
- 13 August Florence Nightingale
- 13 August Octavia Hill
- 14 August Maximilian Kolbe
- 15 August Blessed Virgin Mary
- 20 August Bernard of Clairvaux
- 21 August Pius X
- 22 August Queenship of Mary
- 23 August Rose of Lima
- 24 August Bartholomew the Apostle
- 25 August Louis of France
- 27 August Monica of Hippo
- 28 August Augustine of Hippo
- 29 August The Beheading of John the Baptist
- 31 August Aidan of Lindisfarne
