Meaning and history
From Old Cornish moroin meaning “maiden, girl,” related to Welsh morwyn, this name belonged to a 6th-century Cornish saint said to be one of the daughters of Brychan Brycheiniog.
20062006: no US SSA record for this spelling
2007: no US SSA record for this spelling
2008: no US SSA record for this spelling
2009: no US SSA record for this spelling
2010: no US SSA record for this spelling
20112011: no US SSA record for this spelling
2012: no US SSA record for this spelling
2013: no US SSA record for this spelling
2014: no US SSA record for this spelling
2015: no US SSA record for this spelling
20162016: no US SSA record for this spelling
2017: no US SSA record for this spelling
2018: no US SSA record for this spelling
2019: no US SSA record for this spelling
2020: 16 births, rank #6,923
20212021: 8 births, rank #11,146
2022: no US SSA record for this spelling
2023: no US SSA record for this spelling
2024: 8 births, rank #11,122
20252025: 7 births, rank #11,932
In 2025, 7 babies were recorded with the name Morwenna, ranking #11,932 among girls.