Most Reverend Timothy Senior, V.G., M.B.A., M.S.W., M.A., M.Div

Chancellor & Auxiliary Bishop of Philadelphia

• Phone: 215-989-4357

• E-mail:,

Bishop Timothy Senior was ordained an Auxiliary Bishop of Philadelphia in July, 2009. He is currently Regional Bishop of Montgomery County and Philadelphia-South, as well as Chancellor of Saint Charles Borromeo Seminary.

Prior to assuming these responsibilities, Bishop Senior served as Rector of Saint Charles Borromeo Seminary from 2012 to 2022, after having been the Moderator of the Curia of the Archdiocese of Philadelphia from 2009 to 2012. He served as Vicar for Clergy from 2004 to 2009. From 1992 to 2004, Bishop Senior served in the Archdiocesan Secretariat for Catholic Human Services, both as Deputy Secretary and then Secretary.

A 1977 graduate of Lansdale Catholic High School, Lansdale, PA, Bishop Senior is a classically trained pianist and the youngest of three children. He was ordained a priest of the Archdiocese of Philadelphia in 1985. He earned a Masters of Divinity and Master of Arts in Theology from Saint Charles Borromeo Seminary, served as an assistant pastor at a parish in Bucks County and taught religion in an Archdiocesan high school. He was then assigned to graduate studies at Boston College, earning his Masters in Social Work and Masters in Business Administration in 1992.

In 1998, he was named Honorary Chaplain to His Holiness, and in 2005, he was named a Prelate of Honor. In 2009, Bishop Senior was appointed Titular Bishop of Floriana and Auxiliary Bishop of Philadelphia, and was ordained a Bishop on July 31, 2009 by Cardinal Justin Rigali.
  • M.B.A. Boston College (1992)
  • M.S.W. Administration Boston College (1992)
  • M.A. St. Charles Borromeo Seminary (1988)
  • M.Div. St. Charles Borromeo Seminary (1988)
  • B.A. St. Charles Borromeo Seminary (1981)
  • Chancellor, Saint Charles Borromeo Seminary (2022-)
  • Rector, Saint Charles Borromeo Seminary (2012-2022)
  • Vicar General, Moderator of the Curia, Archdiocese of Philadelphia (2009-2012)
  • Vicar for Clergy Archdiocese of Philadelphia (2004-2009)
  • Secretary for Catholic Human Services Archdiocese of Philadelphia (1997-2004)
  • Deputy Secretary for Catholic Human Services Archdiocese of Philadelphia (1992-1997)
  • Graduate Studies Internship as Executive Assistant to Secretary for Social Services, Boston College, Archdiocese of Boston (1989-1992)
  • Faculty Archbishop Kennedy High School, Conshohocken, PA (1988-1989)
  • Assistant Pastor Assumption Parish, Feasterville (1985-1988)
  • United States Conference of Catholic Bishops, Washington, D.C. "Committee on Divine Worship" & "Committee on Domestic Justice and Human Development”
  • Pennsylvania Catholic Conference Harrisburg, Board of Governors
  • Board of Trustees, Saint Charles Borromeo Seminary, Wynnewood, PA
  • Union League of Philadelphia, Philadelphia, PA

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