Baron Northbourne, of Betteshanger in the County of Kent, is a title in the Peerage of the United Kingdom.

[3] 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.

[5] As of 2019[update], the titles are held by his son, the sixth baron, who succeeded his father in that year.

His son and heir John James notably served as Minister Plenipotentiary to the Netherlands.

The first Baron Northbourne was the grandson of Robert Stewart, 1st Marquess of Londonderry,[2] making him first cousin twice removed of Sir Winston Churchill, who was the grandson of his first cousin Lady Frances Anne Emily Vane, Duchess of Marlborough.