Muach: a river in Conalle Murthemni
Muresc: the land of Ailill's mother; Murresk Hamlet, between Clew Bay and Croagh Patrick, in the County Mayo
Murthemne: a great plain along the northern coast of the County Louth between the river Boyne and the Cooley Mountains; now belonging to Leinster, but, at the time of the Táin, to Ulster (pronounced Mŭr-hĕ́v-ny)
Nemain: the Badb
Ness: mother of King Conchobar by Cathba; she afterwards married Fachtna Fathach and subsequently Fergus macRoig
Nith: the river Dee which flows by Ardee, in the County Louth
Ochain: the name of Conchan bar's shield
Ochonn Midi: a place near the Blackwater at Navan
Ochtrach: near Finnglassa Asail, in Meath
Oenfer Aifè: another name for Conlaech