Twm

A diminutive of Tomos (Thomas), this little name is becoming more popular in its own right in Wales, where nicknames are in style.

The spelling could prove a head-scratcher for non-Welsh speakers, and it's worth bearing in mind that it sounds very similar to "tomb".

Famous bearers include semi-legendary rogue Twm Siôn Cati, poet Twm o'r Nant, and modern poet and musician Twm Morys.

Pronounced TOOM.