桑当（Sandown）是英格兰怀特岛上的一个海滨度假小镇和民政教区。桑当经常被用来作为一个避风港。桑当是一个典型的维多利亚风格的海滨小镇，并且有着丰富的自然景观。

Sandown is a seaside resort town and civil parish on the southeast coast of the Isle of Wight, England, which neighbours the town of Shanklin to the south, with the village of Lake in between the two settlements. Sandown Bay is the name of the bay off the English Channel which both towns share, and it is notable for its long stretch of easily accessible golden sandy beach. It is the site of the lost Sandown Castle. Whilst undergoing construction, this was attacked by a French force which had fought its way over Culver Down from Whitecliff Bay, resulting in the French being repulsed. It was built too far into the sea and constantly suffered erosion, until now reduced to a pile of rocks. Later forts in the town include the Diamond Fort (named after its plan), built inshore to replace the castle and which fought off a minor attack from privateers (probably French) in 1788, and the present "Granite Fort" at Yaverland, which is now the zoo. Together with Shanklin, Sandown forms a built up area of 21,374 inhabitants.