A Tamás férfinév arámi eredetű szó, a Teomo névből származik, jelentése: iker.
A görögök vették át Thomasz formában, mivel a görögben volt egy ilyen alakú szó, csodálatos jelentéssel.
Thomas \th(o)-mas\ as a boy’s name is pronounced TAH-mas. It is of Aramaic origin, and the meaning of Thomas is „twin„. Biblical: one of the 12 apostles known as „doubting Thomas” as he has an unusual mixture of pessimism and zealous faith. Some say his full name was Judas Thomas (Judas the Twin), and the nickname distinguished him from Judas Iscariot. The name has been popular since the 12th-century martyr Thomas Becket. Other saints include Thomas Aquinas and Thomas More.
The Biblical Θωμᾶς has given rise to a large variety of spellings and forms in numerous languages.
Afrikaans: Thomas, Tom, Tomas, Thom, Tommie
Arabic: توما (Touma, Tūmā)
Aramaic: ܬܐܘܡܐ (Tūmā)
Armenian: Թովմաս (Tovmas)
Belarusian: Тамаш (Tamash)
Breton: Tomaz
Bulgarian: Тома (Toma)
Catalan: Tomàs
Croatian: Toma, Tomo, Tomica
Czech: Tomáš, Tom
Danish: Thomas, Tomas, Tom, Tommy
Dutch: Thomas, Tom, Tomas, Thom, Tommie
English: Thomas, Tom, Thom, Tommy, Thommie, Tomas, Tomm
Estonian: Toomas
Faroese: Tummas
Finnish: Tuomas
Filipino: Tomas
French: Thomas
Galician: Tomé
Georgian: თომა (Toma)
German: Thomas, Tom, Tommi
Greek, polytonic: Θωμᾶς (Thōmâs) = monotonic Θωμάς (Thomás) (Saint Thomas also: Δίδυμος (Didymos, „twin”)), Τουμάζος (Toumazos)
Hindi: तोमा (Tomā – biblical only), टॉमस (Ṭāmas)
Hungarian: Tamás
Icelandic: Tómas
Indonesian: Tomo, Tuma
Irish: Tomás, Tomaltach
Italian: Tommaso (also sometimes Tomaso)
Latin: Thomas
Latvian: Toms
Lithuanian: Tomas
Maltese: Tumas
Norwegian : Thomas, Tomas, Tom
Polish: Tomasz, Tomek
Portuguese: Thomaz, Tomaz, Tomás, Tomé
Romani:Tomašis
Romanian: Toma, Tomescu
Russian: Фома́ (written: Foma, pronounced: Famá), Фомка
Scottish Gaelic: Tòmas
Scots: Tam
Serbian: Тома (Toma)
Slovak: Tomáš
Slovenian: Tomaž
Spanish: Tomás
Swedish: Tomas, Thomas, Tom, Tommy
Turkish: Tomas
Ukrainian: Хома́ (Choma)
Welsh: Tomos