Thomas is a Biblical given name, originating from a Judeo-Aramaic name תום or Tôm. The meaning of the name is "twin". The name "Thomas" has been very popular since the 12th century in the days of the martyr Thomas à Becket. However, over the centuries the name lost what religious sense that it held.

All the notable people who had the first name "Thomas" are too numerous to list. People known by the same and only first name include:

• Thomas, the apostle
• Thomas of Aquinas
• Thomas of Erceldoune
• Thomas of Celaeno
• Thomas of Kempis
• Thomas, Earl of Lancaster
• Thomas of Woodstock
• Thomas, Lord Grey of Groby

People with the same last name:

• John Thomas (several)
• George Thomas (several)
• Frank Thomas (several)
• Edward Thomas (several)
• Charles Thomas (several)
• Oldfield Thomas
• Dylan Thomas
• Clarence Thomas
• Ambroise Thomas
• George Henry Thomas
• Ronald Stuart Thomas
• Norman Thomas
• Olive Thomas
• Lewis Thomas
• Dave Thomas
• E. Donnall Thomas
• Helen Thomas
• Andrew Thomas
• Richard Thomas
• Lowell Thomas
• B. J. Thomas
• Danny Thomas
• Isiah Thomas
• Michael Thomas
• Henry Thomas
• Philip Michael Thomas
• Jake Thomas
• Thurman Thomas
• Albert Thomas
• Llewellyn Hilleth Thomas (1903-1992), English and American physicist

Other uses of the name:

• Thomas the Tank Engine (fictional steam engine)
• THOMAS (Internet Database of US Congress legislative information)

Places:

• Thomas, Oklahoma
• Thomas, West Virginia

There are also places called Thomaston and Thomasville.