Anthony Frederick Tonnos (born August 1, 1935) is a Canadian prelate who currently serves as the Emeritus Bishop of the Roman Catholic Diocese of Hamilton.

[2] Tonnos studied at the University of Toronto, where he received a Bachelor of Arts degree.

He then went to study at the University of St. Michael's College where he received a Bachelor of Sacred Theology.

[3][4] On September 24, 2010, Tonnos had retired.

He continues to serve as the Emeritus Bishop of the Roman Catholic Diocese of Hamilton[5] The Hamilton-Wentworth Catholic District School Board named one of their secondary schools in Ancaster in his honour, Bishop Tonnos Catholic Secondary School.