Baron Northbourne, of Betteshanger in the County of Kent, is a title in the Peerage of the United Kingdom. It was created in 1884 for Sir Walter James, 2nd Baronet, who had earlier represented Kingston upon Hull in the House of Commons as a Conservative. His son, the second Baron, sat as a Liberal Member of Parliament for Gateshead. The latter's great-grandson, the fifth Baron, who succeeded his father in 1982, was one of the ninety elected hereditary peers that were allowed to remain in the House of Lords after the passing of the House of Lords Act 1999, and sat as a cross-bencher until his retirement in 2018. As of 2019, the titles are held by his son, the sixth baron, who succeeded his father in that year.

Betteshanger is a village and former civil parish. now in the parish of Northbourne, in the Dover district, in east Kent, UK, near Deal. It gave its name to the largest of the four chief collieries of the Kent coalfield. In 1931 the parish had a population of 55. On 1 April 1935 the parish was abolished and merged with Northbourne.