Forlong the Fat is a fictional character in the Middle-earth universe created by J. R. R. Tolkien. He is a supporting character in The Lord of the Rings, appearing in the third volume, The Return of the King; he was cut from the 2003 film adaptation, however.
Forlong was the Lord of Lossarnach. Though he, and many of his followers, were not of Númenórean descent, they fought for Gondor. Together with 200 well-armed men he rode to the aid of Minas Tirith on the 9th of March, T.A. 3019.
Forlong was killed in the Battle of Pelennor Fields on the 15th of March, as part of a sortie to aid the Rohirrim. Alone and unhorsed he was hewn down by Easterling axes.