Updated November 2026
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Polish, diminutive of Tomasz
"twin"
This nickname is cute, but edgier than Tommy.
English, Cornish
Alternative Cornish spelling of Tamsin, which derives from Thomasin or Thomasina.
French
A rare alternative to the already unusual Gemelle or Gemella, suitable for a twin due to its meaning but perhaps uncomfortably close to the antiseptic cream Germolene.
Greek
Also spelled Thomaïs, this is a Greek feminine form of Thomas, borne by an obscure 10th-century saint.
Diminutive of Thomas, Aramaic
A cosy Medieval diminutive of the classic Thomas, Tomlin might just work for those honoring a Thomas but don't enjoy Tamsin or Thomasina. Typically, albeit rarely, used as a masculine name, it has…
Latin
Reminiscent of the Zodiac sign, Geminus is a Latin name meaning "twin", which may appeal as a middle name option for parents into astrology. The name was notably borne by Geminus of Rhodes, an…