A reliable full-name meaning has not been established here. The recorded Irish and English forms are given without an unsupported translation.
Recorded forms
Maigh Eo· Irish · main form · validated name
Mayo· English · main form
Place & story
Fields beneath the bog
Mayo’s official Céide Fields account describes prehistoric field systems preserved beneath blanket bog on the north coast. This makes an important distinction between the visible surface and earlier land use. A bog landscape was not necessarily always bog, and archaeological evidence can reveal settlement that a modern view conceals. The site’s significance should be described through its evidence, without using an unsupported claim that every feature or farming system is the world’s oldest.[4]
The bay and the inland route
Lewis’s 1837 Westport entry describes agricultural exports and imported timber through Clew Bay, with the town’s Mall and estate landscape beside the river. Castlebar’s entry places a market and administrative centre on the road towards Westport. These are connected but different histories. Goods, military forces and travellers could move between them, while the harbour town and inland county centre generated distinct records and served different local catchments.[2][3]
Locate the county connection
A Mayo family reference may concern a northern coastal townland, an inland parish or a route through one of those markets. Preserve the exact parish, street, island or estate name where available. A port of departure is not proof of birthplace, and the history of a landlord or a battle cannot establish every resident’s origins. Archaeological places, modern county addresses and nineteenth-century administrative descriptions belong to different scales and periods and should be matched carefully.[2][3][4]
Figures cover the whole county including its cities. CSO recommends this series for long-term comparison, although minor boundary changes have occurred.
View population figures
County Mayo, including its cities — census population
placenames