Arundel is a market town in a steep vale of the South Downs, West Sussex, England.
Arundel Castle was built by the Normans to protect that vulnerable wooded plain to the north of the valley through the South Downs, the slope below the castle was then settled to the south.
The town has a medieval castle, a cathedral, a museum and the slight remains of an abbey, located near the museum. The River Arun runs through the eastern side of the town.
Arundel is a major bridging point over the River Arun, it was the last road bridge along the river, until the opening of the Littlehampton swing bridge in 1908.
The town itself lies outside the boundaries of the South Downs National Park.
On 6 July 2004, Arundel was granted Fairtrade Town status.
Arundel is home to one of the oldest Scout Groups in the world. 1st Arundel (Earl of Arundel's Own) Scout Group was formed in 1908 only a few weeks after Scouting began. Based in an HQ in Green Lane Close, it has active sections of Beaver Scouts, Cub Scouts and Scouts.