Keyne as a Baby Name. Meaning and Origin of Keyne

What is the meaning of the name Keyne ?

The baby name Keyne is a Unisex name , 1 syllables long and is pronounced /keɪn/ (KAYN).

Keyne is Cornish, English, Irish, Welsh in Origin.

Keyne is a rare Celtic given name linked to the 5th‑century Saint Keyne (Keyna), a Welsh/Cornish holy woman traditionally said to be a daughter of Brychan. In this Brythonic line, the name relates to Welsh cain, meaning “fair, beautiful, fine.” The saint’s cult left place‑name traces such as St Keyne in Cornwall and a celebrated holy well, keeping the name in regional memory. As a modern given name, Keyne remains uncommon but has seen sporadic revival alongside broader interest in Celtic heritage.

Variants and cognates include Keyna (feminine), Cein and Ceinwen in Welsh, and the Anglicized forms Keyn; phonetic cousins Keene, Kean, and Keane are often conflated but have distinct roots. An alternative English etymology connects Keyne to Old English cene “bold, brave,” yielding a dual resonance: “fair/beautiful” or “keen/brave.” Sometimes chosen as a fresh twist on Kane or Cian, it is typically unisex. Not to be confused with biblical Cain.