Origin of the name Finley: Anglicized form of Fionnlagh and Fionnla, compound names composed of the Gaelic elements fionn (white, fair) and laogh (warrior, calf): hence, "fair-haired warrior." Var: Finlay.
The origin of the name Mayo is Irish Gaelic. Mayo is an Irish Gaelic name that means 'From the yew tree plain' 2018-02-25T08:16:11+00:00 Rachel Collard 98bb6700bf1143cc1d7c8f82075c722568df6f52. Mayo name meaning: From the yew tree plain. Gender: Male. Origin: Irish Gaelic.