Vestmanna is a town in the Faroe Islands on the west of the island of Streymoy.

It was formerly a ferry port, until an undersea tunnel, the Vagatunnilin, was built from Vagar to Kvivik and Stykkiõ further south on Streymoy. The cliffs west of Vestmanna, Vestmannabjørgini, are very popular for excursions by boat.

A 'Vestmann' was a "Westman", or Gael in Old Norse. The original name was Vestmannahavn, i.e. "Westmen's/Irishmen's harbour".

Vestmanna is often called the tourist village on the Faroe Islands. The main tourist attraction is Vestmannabjørgini. In 2012 a camping site was established at Inni a Fjørõ with a capacity of 120 caravans in addition to tents.