- Feast Day: October 5
- Type of Feast: Commemoration
- Dates: Born August 25, 1905 Glogowiec, Poland; Died October 5, 1938 Krakow, Poland
- Birth Name: Helen Kowalska
- Patron of : MERCY
- Beatification: April 18, 1993 by St. Pope John Paul II
- Canonization: April 30, 2000 (Divine Mercy Sunday) by St. Pope John Paul II
- Prayers: Divine Mercy Chaplet; Divine Mercy Novena
