Muirenn as a Baby Name. Meaning and Origin of Muirenn

What is the meaning of the name Muirenn ?

The baby name Muirenn is a Female name , 2 syllables long and is pronounced /ˈmɪrʲən̪ˠ/ (approx. "MIR-in" or "MUR-in").

Muirenn is Irish, Irish (Gaelic) in Origin.

Muirenn is an Old Irish feminine name built from muir “sea” and fionn/finn “white, fair,” yielding meanings such as “sea‑white” or “fair one of the sea.” The maritime element made it a poetic choice in early Gaelic culture, and medieval glossators often read it more broadly as “of the sea.” In Modern Irish orthography the standard form is Muireann.

The name is well attested in early medieval Ireland, borne by abbesses and noblewomen recorded in the annals, including leaders at Kildare, which helped entrench its ecclesiastical and aristocratic associations. Variants and related forms include Muireann (modern spelling), diminutives Muirín and Muiríne, and the closely related but distinct Muirne (mother of the hero Fionn mac Cumhaill). In contemporary use, many retain the Irish spelling; in Scotland, Mirren and Merren sometimes serve as Anglicized parallels, though Mirren’s history also intersects with the male saint Mirin.