List of former Catholic brothers
# List of former Catholic brothers

This a list of notable former Roman Catholic religious brothers:

* Rick Curry, SJ – was a Jesuit brother for 47 years before being ordained a priest in 2009 at the age of 66
* Justo Gallego Martínez – Spanish former Trappist monk who left due to ill health; best known for his construction of an unfinished and unsanctioned cathedral in the Community of Madrid
* Robert Hoatson – former Christian Brother and priest who left to become a sexual abuse victims activist
* John Philip Holland – Irish engineer and developer of the first submarine of the United States Navy; was a member of the Congregation of Christian Brothers in his younger years before leaving in 1873 due to ill health
* Guillaume Imbert – French writer; was forced by his parents to join a Benedictine monastery but left as soon as he could
* Gabriel Moran – American theologian and religious educator; was a Brother of the Christian Schools from 1954–1985 when he left and married a woman
* Trinidad Sanchez, Jr. – American poet; was a Jesuit brother for 27 years
* William I of Berg – Count of Berg; former monk whose religious vows were absolved by the Pope so he could become count
