Thomas Grace (August 2, 1841 – December 27, 1921) was an Irish-born prelate of the Roman Catholic Church.

[3] Eventually, Grace became the pastor of the pro-cathedral, Saint Rose of Lima Catholic Church, whose land was donated by the first governor of California, Peter Burnett.

On February 27, 1896, Pope Leo XIII appointed Grace bishop of the Sacramento Diocese.

[5] On October 30, 1906, he was given the property deed in Red Bluff, California, with the provision that it remain as a hospital for the Sisters of Mercy.

[7] Grace helped launch the diocesan newspaper, The Catholic Herald, with a message endorsing its scope and usefulness to the diocese on March 14, 1908.