[ syll. fion-nlag(h), fi-onnla-gh ] The baby boy name Fionnlagh is mainly used in the Irish, Scottish, English, and Gaelic languages. It is of Celtic origin. The name means fair warrior. It is derived from the words 'fionn' meaning white, fair ; 'laogh' warrior. The name can be Anglicized as Finlay.
Fionnlagh is a variant form of the English, Irish, and Scottish name Finlay in the Irish and Scottish languages.
See also the related form, the English and Gaelic MacKinley.
Fionnlagh is not frequently used as a baby boy name. It is not ranked within the top 1000. Out of the family of boy names directly linked to Fionnlagh, Finley was the most popular in 2018.