Annwn as a Baby Name. Meaning and Origin of Annwn

What is the meaning of the name Annwn ?

The baby name Annwn is a Unisex name , 2 syllables long and is pronounced /ˈan.un/ (AN-oon).

Annwn is Welsh in Origin.

Annwn is a rare Welsh given name drawn from the mythic Otherworld of medieval Welsh tradition. In the Mabinogi and the poem The Spoils of Annwn, Annwn (Middle Welsh Annwfn) denotes a paradisal underworld ruled by Arawn; the word derives from an- “very” + dwfn “deep” (Proto-Celtic *ande-dubnos), yielding the sense “the very deep [world],” hence “the Otherworld.”

As a personal name, Annwn has no medieval attestation but has seen occasional modern, often feminine or unisex, use among lovers of Celtic lore. Variant spellings include Annwfn (arch.), Annwyn/Annwynn (Anglicized to aid pronunciation), and the literary Annuvin popularized by Lloyd Alexander. Do not confuse it with Anwen (from an + gwen “very fair/blessed”), a separate Welsh name. Most English speakers say AN-noon; in Welsh it approximates AN-oon. The name carries associations of mystery, poetry, and liminality rather than a morbid tone in its original context.

⚙ We can't find Annwn in any of the birth registries or name datasets we track. It's the kind of name that tends to be rare, regional, or newly made up. However you look at it, very few people share it.