Alqualondë was the chief city of the Falmari on the shores of Valinor. The city is said to be north and east of Tirion between the Calacirya and Araman in northern Eldamar.
The city was built in a natural harbour made of rock, and was also walled. Other than the great harbours it also housed the Tower of Olwë. The city was covered with the pearls the Elves had found in the sea and jewels which they obtained from the Noldor. The famed swanships were moored here.
Alqualondë is perhaps best known as the site of the First Kinslaying recounted in The Silmarillion.
Alqualondë means "Swanhaven" in Quenya (from alqua = "swan", londë = "harbor, haven"). The Sindarin equivalent would be Alflond.