Cay as a Baby Name. Meaning and Origin of Cay

What is the meaning of the name Cay ?

The baby name Cay is a Unisex name , 1 syllables long and is pronounced /keɪ/ (KAY) — most common,/kaɪ/ (KYE) — sometimes, when used as a variant of Kai.

Cay is English, Welsh in Origin.

Cay is a compact cross‑cultural given name. In English it parallels Kay, the medieval short form of Katherine, and is unisex. In Scandinavia it matches Kaj/Kai, long used for men, and it also echoes Welsh Cai from Arthurian legend. Variants include Kay/Kaye, Kai, Kaj, and Cai; longer relatives are Katherine and Kathleen.

Meaning depends on the route taken: from Katherine, “pure” (Greek katharos); via Kai/Kaj, modern associations like “sea” (Hawaiian); via Welsh Cai, a knight’s name of unclear etymology. The identical English noun cay, “small island” (from Spanish cayo), has also inspired use, giving the name a spare, coastal feel. As a given name, Cay appears in Scandinavian records since the late 19th century and in English-speaking countries from the mid‑20th century, typically rare but steady, and today reads crisp and modern across languages.