Thomas Dominic Williams, O.P. (1660–1740) was a Roman Catholic bishop who served as the Vicar Apostolic of the Northern District from 1725 to 1740.

Born in Monmouthshire

Monmouthshire (historic)

Monmouthshire , also known as the County of Monmouth , is one of thirteen ancient counties of Wales and a former administrative county....

 in 1660, he was appointed the Vicar Apostolic of the Northern District on 11 December 1725 and confirmed on 22 December 1725. He was consecrated

Consecration

Consecration is the solemn dedication to a special purpose or service, usually religious. The word "consecration" literally means "to associate with the sacred". Persons, places, or things can be consecrated, and the term is used in various ways by different groups...

 the Titular Bishop

Titular bishop

A titular bishop in various churches is a bishop who is not in charge of a diocese.By definition a bishop is an "overseer" of a community of the faithful, so when a priest is ordained a bishop the tradition of the Roman Catholic and Orthodox churches is that he be ordained for a specific place...

 of Tiberiopolis

Tiberiopolis

Tiberiopolis is a Catholic titular see. The original diocese was in Phrygia Pacatiana, and is mentioned by Ptolemy, Socrates of Constantinople and Hierocles. It struck its own coins at least from the time of Trajan...

on 30 December 1725, the principal consecrator

Consecrator

Consecrator is a term used in the Roman Catholic Church to designate a bishop who ordains a priest to the episcopal state. The term is often used in Eastern Rite Churches and in Anglican communities. The term "Principal Consecrator" is used to designate the primary bishop who ordains a new bishop...

 was Pope Benedict XIII

Pope Benedict XIII

-Footnotes:...

, and the principal co-consecrators were Archbishop Vincenzo Maria d’Aragona of Cosenza and Bishop Giacinto Gaetano Chiurlia of Giovinazzo.

He died in office on 3 April 1740, aged 80.