Fr. Mark O’Leary – Diocese of Santa Rosa

Father Mark O’Leary

Diocese of Santa Rosa

Mark O’Leary Diocese of Santa Rosa Horowitz Law

Ordained: 1985

Removed: 2002 

Assignment History:

  • 1965-1974: Daniel Murphy Catholic High School (Formerly St. John Vianney) (Los Angeles, CA)
  • 1975: Dominican Fathers (Los Angeles, CA)
  • 1976-1979: Unknown
  • 1980: St. Dominic (Los Angeles, CA)
  • 1981-1989: Unknown
  • 1990-1992: Holy Rosary (Antioch, CA)
  • 1993: Unknown
  • 1994-1997: Dominican Order, Sienna House (Oakland, CA)
  • 1998: Unknown
  • 1999-2002: St. Mary Magdalen (Berkley, CA)
  • 2003-2007: Unknown
  • 2008-2017: Order of Preachers (Oakland, CA)
  • 2018-2021: Unknown

Summary of Sexual Abuse Allegations Against Father Mark O’Leary:

Fr. Mark O’Leary was ordained a priest of the Dominican Order in 1985. He served in multiple dioceses including in the Diocese of Santa Rosa. According to media reports, two men alleged he sexually abused them from 1974-1977 when they were young boys in southern California. The accusations were deemed credible and he was sent to receive extensive psychological assessment and counseling. In 2002, he was permanently removed from ministry.

Fr. O’Leary was named on the 2019 Santa Rosa Diocese’s list of credibly accused clergy of child sexual abuse.

Horowitz Law is a law firm representing victims and survivors of sexual abuse by Catholic priests and other clergy in the Diocese of Santa Rosa in California.  If you need a lawyer because you were sexually abused by a priest in one of California’s Catholic dioceses, contact our office today. Although many years have passed, those abused by Catholic clergy in the Diocese of Santa Rosa now have legal options due to a voluntary compensation fund created by the Diocese of Santa Rosa, but filing deadlines will apply so do not delay in reaching out to us.  Our lawyers have decades of experience representing survivors of clergy sexual abuse in California and nationwide. We can help. 

Contact us at (888) 283-9922 or adam@adamhorowitzlaw.com to discuss your options today.