Fenwick Tower was a 12th-century tower house at Fenwick, Matfen, Northumberland, England.

The house was the home of the Fenwick family from the 12th century until they moved to Wallington in the 16th century.

[1] In 1378 John Fenwick was granted a licence to crenelate the house.

The tower was largely demolished in about 1775 at which time a hoard of medieval gold coins was discovered.

[2] The sparse remains of the tower are now incorporated into a 17th-century farmhouse and are protected by Grade II listed building status[2] On 15 February 2010 human remains were found buried next to a cottage in the hamlet of Fenwick Towers.