John West, 2nd Earl De La Warr (9 May 1729 – 22 November 1777), styled Viscount Cantelupe from 1761 to 1766, was a British Army officer, peer and courtier.

His younger brother was George Augustus West (who married Lady Mary Grey, eldest daughter of Harry Grey, 4th Earl of Stamford and Lady Mary Booth, only daughter of George Booth, 2nd Earl of Warrington).

From 1760 to 1761, he served as aide-de-camp to the King George III and was promoted to major general in 1761.

From 1761 to 1766, Cantelupe was Vice to Chamberlain to Queen Charlotte and he was Captain and Colonel of the 1st Troop Horse Grenadier Guards from 1763 to 1766.

In 1768, he became Lord Chamberlain to Queen Charlotte and in 1770, he was promoted to lieutenant general of the British Army.