Folan
Folan (Irish: Ó Cualáin or Ó Culáin), is an Irish family name. They were a Brehon family in County Galway. The Folan family are of Conmhaícne origin.
The surname Folan is most numerous in County Galway, particularly in the area between Galway City and Clifden, in Connacht, Ireland. The Gaelic spelling used in the Irish-speaking Gaeltacht of Galway is Ó Cualáin, despite Mac Fualláin and O Fualláin being attributed to it by Edward Mac Lysaght and other Irish surname scholars. It is also often incorrectly listed as a variation of other Irish names Fallon, Phelan, or Foley.