Merewyn as a Baby Name. Meaning and Origin of Merewyn

What is the meaning of the name Merewyn ?

The baby name Merewyn is a Unisex name , 3 syllables long and is pronounced MEER-eh-win (IPA: /ˈmiːrəwɪn/).

Merewyn is English in Origin.

Merewyn is an Old English feminine name formed from mere “sea, lake” and wynn “joy, delight,” yielding the sense “sea-joy” or “joy by the sea.” The spelling modernizes earlier recorded forms such as Mærwynn (Maerwynn) and Merewynn, with the second element wynn widely used in Anglo-Saxon women’s names to express happiness or blessing.

Documented in early medieval England, it is associated with figures like St. Mærwynn/Merwinna, abbess of Romsey. After the Norman Conquest it waned, then reappeared through antiquarian interest and literary revival; Anya Seton’s novel Avalon notably featured a heroine named Merewyn, sparking some modern use. Variants and related forms include Merewen, Merewynn, Merwenna/Merwinna, Maerwynn, and Maerwenna, with occasional short form Merewen. Distinguish it from the Welsh masculine Mervyn/Merfyn and the Cornish Morwenna, which have separate origins.

⚙ Merewyn is exceptionally rare. Across 2 countries, we found just 2 recorded uses of it.