Udûn
Valley in northern Mordor, south of the Morannon.

Uinen
A Maia, the Lady of the Seas, spouse of Ossë.

Uineniel

Úlairi
See Ringwraiths.

Uldor
Called the Accursed; son of Ulfang the Black; slain by Maglor in the Nirnaeth Arnoediad.

Ulfang the Black
A chieftain of the Easterlings, who with his three sons followed Caranthir, and proved faithless in the Nirnaeth Arnoediad.

Ulfast
Son of Ulfang the Black, slain by the sons of Bor in the Nirnaeth Arnoediad.

Ulmo
A Vala, one of the Aratar, second in rank to Manwë, called Lord of Waters and King of the Sea, The name was interpreted by the Eldar to mean 'The Pourer' or 'The Rainer'.

Ulumúri
The great horns of Ulmo made by the Maia Salmar.

Ulwarth
Son of Ulfang the Black, slain by the sons of Bor in the Nirnaeth Arnoediad.

Úmanyar
Name given to those Elves who went on the westward Journey from Cuiviénen but did not reach Aman: 'Those not of Aman', beside Amanyar 'Those of Aman'.

Úmarth   Ill-fate
A fictitious name for his father given out by Túrin in Nargothrond.

Umbar
Coastal region between the Harad in the east and the Ocean in the west. The central part of Umbar is formed by a promontory and a great bay, on which lay the City of the Corsairs.

Undying Lands
Aman and Eressëa; also called the Deathless Lands.

Ungoliant
The great spider, destroyer with Melkor of the Two Trees of Valinor. Shelob in LOTR was 'the last child of Ungoliant to trouble the unhappy world' (The Two Towers IV 9).

Union of Maedhros
The league formed by Maedhros to defeat Morgoth that ended in the Nirnaeth Arnoediad.

Urthel
One of the twelve companions of Barahir on Dorthonion.

Uruks
The name of Orcs in their own language.

Urulóki   fire-serpent
Quenya word for the dragons.

Urwen

Utumno
The first great stronghold of Melkor, in the north of Middle-earth, destroyed by the Valar.