Thomas is a common surname of English, Welsh, Irish, Scottish, French, German, Dutch, and Danish origin.
It derives from the medieval personal name, of Biblical origin, from Hebrew תאומא t'om'a, a byname meaning 'twin'.
The English pronunciation as t rather than a dental fricative is the result of French influence from an early date.
[2] In the 1990 United States Census, Thomas was the twelfth most common surname, accounting for 0.3% of the population.
[3] In France, Thomas (pronounced [tɔmɑ]) is the third most widespread surname after Martin and Bernard, with over 100,000 people with this name.