Thomas Deenihan KC*HS (born 20 June 1967) is an Irish Roman Catholic prelate who has served as Bishop of Meath since 2018.

He also served as a member of the Honan Governors at University College Cork and Mercy Care South, as diocesan juridical person for Mercy University Hospital and as chair of the Board of Directors of the Christian Leadership in Education Office.

[1] Deenihan was appointed Bishop-elect of Meath by Pope Francis on 18 June 2018.

[1][6][7][8] He was consecrated by the Archbishop of Armagh and Primate of All-Ireland, Eamon Martin, on 2 September at the Cathedral of Christ the King, Mullingar.

[9][10][11] Speaking at the funeral of Ashling Murphy on 18 January 2022, Deenihan referred to her murder as "a depraved act of violence" and called on people to respect each other.