The Heritage of Mayo by Áine Ní Cheanainn is a detailed regional study and heritage guide first published in 1982 by Foilseacháin Náisiúnta Teoranta in Dublin.

The book offers a broad survey of County Mayo’s historical and cultural landscape, combining archaeology, folklore, geography, and local history. It reflects the author’s deep connection to Mayo and her broader interest in Irish education, language, and cultural preservation.

Structured as a thematic exploration of the county, the book examines Mayo’s development from early settlement through medieval times, focusing on its evolving communities, land divisions, and cultural identity. It also highlights the importance of Mayo’s Gaelic heritage and its role in shaping western Ireland’s historical narrative.

A significant feature of the book is its use of photographs and descriptive commentary, which help bring attention to both well-known landmarks and lesser-known local sites across the county.

Key themes include:

• Archaeological sites and early settlement in Mayo
• Gaelic clans and medieval territorial divisions
• Religious history, monastic sites, and pilgrimage traditions
• Rural life, farming culture, and traditional practices
• Folklore, mythology, and oral storytelling heritage
• Castles, estates, and historical architecture
• Coastal landscapes, islands, and natural geography
• Cultural identity and Irish language heritage in Mayo

The author, Áine Ní Cheanainn (1907–1999), was a prominent educator and cultural figure from Mayo who played an important role in Irish education and broadcasting. Her background as a teacher and school principal informs the book’s accessible tone, making it suitable for both general readers and those interested in local studies.

The work also reflects a wider 20th-century movement in Ireland focused on documenting and preserving regional heritage at a time when rural traditions were changing rapidly. It serves as both a cultural record and an educational resource, aiming to capture Mayo’s identity before further modernization altered its traditional landscape.

Overall, The Heritage of Mayo stands as an important contribution to Irish local history, cultural heritage studies, and regional documentation, offering readers a comprehensive and engaging portrait of one of Ireland’s most historically rich counties.