| Kath Brese | Place built by the Dagda. |
| Leat Glas |
The hlaf-green bard or poet of Indech. |
| Lebor Gabala Erenn | The Book of the Takings of Ireland. better known as. The Book of Invasions. |
| Lia Fial | The Stone of Destiny which was located near the Hill of Tara in County Meath. It used to cry out beneath every king of Ireland and was one of the great, magical treasures of the Tuatha De Danaan. |
| Liath |
Son of Lobais, one of the nobles of the Fomori. |
| Liffey, the |
One of the nine sacred rivers, it is a river in Ireland, which flows through the centre of Dublin. . |
| Lobais |
Druid of the Fomori. |
| Lochlan |
"Land of Loughs", invaded by the Vikings, |
| Loscuiin |
On the banks of the River Uinias. |
| Lough Ce |
The Lough named after the water that burst through the ground where the great Druid Ce died. |
| Lough Corrib |
One of the nine sacred lakes. The River Corrib/Galway river connects the lake to the sea at Galway. It is the largest loch in the Republic of Ireland and the second largest in the island of Ireland after Lough Neagh and it covers some 200 sq km |
| Lough Arboch |
Lake. More needed here. |
| Lough Derg |
Lake on the River Shannon, situated at the boundary of Counties Tipperary, Galway, and Clare. One of the nine sacred lakes. |
| Lough Gara |
One of the nine sacred lakes. Lough Gara is situated mainly in south Sligo in the parishes of Kilfree, Killaraght and Kilcolman, & Monasteraden with part of the lake stretching over the Sligo border into Kilnamanagh, a north Roscommon parish. From north to south the lake spans about four miles. |
| Lough Luimnigh |
One of the nine sacred lakes. Luimneach originally referred to the general area along the banks of the Shannon Estuary, which was known as Loch Luimnigh. |
| Lough Mask |
A limestone lake of 22,000 acres (89 km²) in County Mayo, Republic of Ireland, located above Lough Corrib in the west of Ireland. One of the nine sacred lakes. |
| Lough Neagh |
A freshwater lake in Northern Ireland. With an area of 392 square kilometres (151 square miles), it is the largest lake in the United Kingdom. One of the nine sacred lakes. |
| Lough Reagh |
One of the nine sacred lakes. |
| Lough Ree |
A lake in the midlands of Ireland, the second of the three major lakes on the River Shannon. One of the nine sacred lakes. |
| Luath |
"swift expeditions" |
| Luchtar |
Carpenter or Wright of the Tuatha De Danaan, son of Luachaid. |
| Lugaid |
Lugaid Riab nDerg was Cuchulain's foster son and legendary High King of Ireland. |
| Lugh |
A hero and High King of Ireland, he was skilled in many arts, and led the Tuatha De Danann in the Second Battle of Mag Tuireadh against the Fomori. Also called Samildanach, Master of all Arts, and Lamhfada, of the Long Arm. |
| Luin |
Magic spear sought by the Sons of Tuireann. |
| Macha |
One of the Three queens of the Tuatha De Danaan also know as The Head Taker. She along with her two sisters Morrigu and Badb went to the Knoll of the Taking of the Hostages, and to the Hill of Summoning of Hosts at Temair, before the battle of Magh Tuireadh and sent forth showers of sorcery and clouds of mist and a furious rain of fire, with a downpour of red blood from the air on the Fir Bolg warriors' heads. |
| Maedb |
Queen of Connacht, husband of Ethal Anubal. |
| Maeltine Mor-Brethach |
Law-speaker, brehon, and advisor to Lugh after the Second Battle of Magh Tuireadh. |
| Maethgen |
Powerful sorceror of the Tuatha De. |
| Maeth Sceni | Place of peace. |
| Magh | Plain/Field. |
| Magh Mor |
The great plain, or great dessert, in the Black Land of Egypt. The birth-place of Tailltiu, the foster-mother of Lugh. |
| Magh Mor an Aonaigh |
The great plain of the fair, where the Fomori were before the second battle of Moytura. |
| Magh Muirthemne |
Plain/Field of Muirthemne. |
| Magh Nia | The second settlement of the Tuatha de Danaan in Ireland, better fortified and farther west in Connacht than Magh Rein. It was also in this place that both the Fir Bolg and the Tuatha De Danaan prepared for and fought the first battle of Magh Tuireadh. |
| Magh Rein | An area in Brefne Co. Leitrim, Connaught, where the Tuatha De Danaan built their first settlement after arriving in Ireland. |
| Magh Scetne |
Plain where the Fomori met the men of Erin. |
| Magh Tuireadh | The name Mag Tuired (modern Irish Magh Tuireadh) means "the plain of pillars" and is anglicised as Moytura or Moytirra. It refers to two separate places, both in Connachta: the first near Cong, County Mayo on the border with County Galway (First Battle Of Magh Tuireadh); the second by Lough Arrow in County Sligo (First Battle Of Magh Tuireadh). Also see Tuireadh. |
| Mag Mor | Literally, the Great Plain, name of the desert of Egypt, home ("father") of Tailltiu. |
| Manannan |
Also known as Manannan mac Lir, son of Lir, the great Sea God. |
| Marloch |
One of the nine sacred lakes. |
| Men of Dea |
See Tuatha De Danaan. |
| Miach, the | Son of Diancecht, magic healer of the Tuatha De Danaan. |
| Mide |
The Son of Brath. |
| Midhe |
County Meath in Ireland. |
| Midir |
A son of the Dagda of the Tuatha De Danann. Fought in the first battle of Magh Tuiread. |
| Minn |
One of the nine foster-fathers of Lugh. |
| Miochaoin |
Bondsman of Cian who must be beater by the Sons of Tuireann. He had three sons: Corc, Conn and Aedh. |
| Mor-fesae | Is the Druid from Falias. He held the great stone, the Lia Fial, the Stone of Destiny, in his charge. |
| Morrigan, Morrigu |
One of the Three queens of the Tuatha De Danaan also known as The Great Queen. She along with her two sisters Macha and Badb went to the Knoll of the Taking of the Hostages, and to the Hill of Summoning of Hosts at Temair, before the battle of Magh Tuireadh and sent forth showers of sorcery and clouds of mist and a furious rain of fire, with a downpour of red blood from the air on the Fir Bolg warriors' heads.She also brought terror onto the battlefield at the Second Battle of Moytura. |
| Mourne Mountians |
The Mourne Mountains or Mournes (Irish: Na Beanna Boirche), a granite mountain range located in County Down in the south-east of Northern Ireland - one of the twelve sacred mountains. |
| Moy, the |
One of the nine sacred rivers of Erin. It rises in the Ox Mountains in County Sligo in the northwest of Ireland. For the greater part of its length, the Moy flows southwestward, entering County Mayo and passing not far from Swinford before turning north near the village of Kilmore and heading for the historic town of Ballina, where it empties into Killala Bay and the Atlantic Ocean. |
| Muirne |
Daughter of Tadg and Eithne, mother to Finn of the Fianna. |
| Muirthemne |
Plain/Field. in Louth |
| Murias | A city on the fourth great island of the Tuatha De Danaan to the West of Ireland, also known as the Isles of Apples and in later year became known as Avalon. From here was bought the Cauldron of the Dagda, from which no one ever went hungry or sick or any way unsatisfied. |
| Nas |
Location of the Court of Lugh. |
| Nechtan (Mac Labraid) |
Of the Tuatha De Dannan, Necha¡n was one of the guardians of the sacred well of Segais under the sea in the sidhe of Nechtan along with his brothers Flesc, Lam and Luam. |
| Neid |
One of the nobles of the Fomori, father to Eab, grandfather of Seanchab. |
| Nem, the |
One of the nine sacred rivers of Erin. |
| Nemhedh, Nemed | Leader of the third Invasion, from Egypt. |
| Nemthenn |
One of the twelve sacred mountains of Erin. |
| Nes |
Fire-spear of Goban. |
| Net |
Grand-father of Balor. |
| Newgrange |
The modern name for Brugh na-Boinne. |
| Nuada, Airgetlamh |
Nuada "Silver Hand/Arm", he was the first king of the Tuatha De Danaan and was king for seven years before they came to Ireland. Nuada lost an arm to Sreng during the Battle of Mag Tuired. His lost arm replaced by a working silver one by the Diancecht and the wright Creidne (and later with a new arm of flesh and blood by the Diancecht''s son, the Miach) |
| Octriallach |
Son of Indech. |
| Octruil |
Son of the Diancecht. |
| Ogham |
The sacred script of the Druids used for magic and commemorative purposes. |
| Ogma |
A Son of the Dagda. He fights in the first battle of Mag Tuired, when the Tuatha De take Ireland from the Fir Bolg. Under the reign of Bres, when the Tuatha De are reduced to servitude, Ogma is forced to carry firewood, but nonetheless is the only one of the Tuatha De who proves his athletic and martial prowess in contests before the king. When Bres is overthrown and Nuada restored, Ogma is his champion. His position is threatened by the arrival of Lugh at the court, so Ogma challenges him by lifting and hurling a great flagstone, which normally required eighty oxen to move it, out of Tara, but Lugh answers the challenge by hurling it back. When Nuadu hands command of the Battle of Mag Tuired to Lugh, Ogma becomes Lugh's champion, and promises to repel the Fomorian king, Indech, and his bodyguard, and to defeat a third of the enemy. During the battle he finds Orna, the sword of the Fomorian king Tethra, which recounts the deeds done with it when unsheathed. During the battle Ogma and Indech fall in single combat, although there is some confusion in the texts as in Cath Mag Tuired Ogma, Lugh and the Dagda pursue the Fomorians after the battle to recover the harp of Uaitne, the Dagda's harp. |
| Orna |
The magical, talking sword of Tethra. |