The poems listed here are from various writings of Tolkien.  Although the majority can be found in The Hobbit or LotR, some come from The Tolkien Reader.  Of course, I do plan on adding more in the future.   Note that not all the poems in Tolkien's writings have names.  I have given names to those that were without so as to make a distinction of it.

Malbeth the Seer

Over the land there lies a long shadow,
westward reaching wings of darkness.
The Tower trembles; to the tombs of kings
doom approaches. The Dead awaken;
for the hour is come for the oathbreakers:
at the Stone of Erech they shall stand again
and hear there a horn in the hills ringing.
Whose shall the horn be? Who shall call them
from the grey twilight, the forgotten people?
The heir of him to whom the oath they swore.
From the North shall he come, need shall drive him:
he shall pass the Door of the Paths of the Dead.