Tommaso Reggio (9 January 1818 - 22 November 1901) was an Italian Roman Catholic prelate who served as the Archbishop of Genoa from 1892 until his death.
He was also the founder of the Sisters of Saint Martha.
Reggio distinguished himself during an earthquake that struck his diocese in 1887.
He tended to the injured in the rubble and led initiatives to direct diocesan resources towards the displaced and the injured; while in Genoa he collaborated with Bishop Giovanni Battista Scalabrini in tending to immigrants through a range of different pastoral initiatives.Reggio's cause for sainthood opened in 1983 though initiatives had been made prior to this to collect documents in relation to his life and episcopal tenure; he was named as Venerable in 1997 and the miraculous cure of a Chilean girl led to his beatification in Saint Peter's Square on 3 September 2000.