Leabhar Ua Maine
| Leabhar Ua Maine | |
|---|---|
| Royal Irish Academy | |
| Also known as | The Book of Hy-Many, Leabhar Uí Dubhagáin | 
| Type | Compilation of Irish legends | 
| Date | 1392–94 | 
| Place of origin | Uí Maine | 
| Language(s) | Middle Irish | 
| Scribe(s) | Ádhamh Cúisín, Faolán Mac an Ghabhann na Scéal | 
| Patron | Muircheartach mac Pilib Ó Ceallaigh | 
| Material | Vellum | 
| Size | 44cm x 27cm | 
| Format | Folio | 
| Script | Irish minuscule | 
Leabhar Ua Maine (also Leabhar Uí Dubhagáin, Book of Uí Maine, Book of Hy-Many and RIA MS D ii 1) is an Irish genealogical compilation, created c. 1392–94.