Venerable Honora Nagle, known informally as Nano Nagle, was a pioneer of Catholic education in Ireland despite legal prohibitions. She founded the Sisters of the Presentation of the Blessed Virgin Mary (PBVM), commonly known as the Presentation Sisters, now a worldwide Catholic institute of women religious. She was declared venerable in the Roman Catholic Church on 31 October 2013 by Pope Francis.

The Presentation Sisters, officially the Sisters of the Presentation of the Blessed Virgin Mary, are a religious institute of Roman Catholic women founded in Cork, Ireland, by the Venerable Honora "Nano" Nagle in 1775. The Sisters of the congregation use the postnominal initials PBVM.