The tower, port and city of Dol Amroth was one of the five greatest cities in Gondor. It was the largest city in the fief of Belfalas.

Dol Amroth was named for the elf Amroth, the star-crossed lover of the Elven princess, Nimrodel. Until Amroth's death in 1981 of the Third Age, the Elves of Lothlórien sailed out of the port there to the Undying Lands in their white ships.

It was ruled by the Princes of Dol Amroth, whose banners were blue, with a white ship and a silver swan. The first prince of Dol Amroth (the title was created around 2050 of the Third Age) was Galador, the son of Imrazôr of Númenór and Mithrellas the elf. It is said that the Lords of Dol Amroth are fair of face and noble of blood because of this heritage.

The Prince of Dol Amroth at the time of the War of the Ring was Imrahil.