The title Baron Buckhurst has been created twice; once in the Peerage of England and once in the Peerage of the United Kingdom. It was first created in 1567 for Thomas Sackville, MP for East Grinstead and Ailesbury. He was later created Earl of Dorset. That creation became extinct in 1843. It was next created in 1864 for the sister of the 4th Duke (and 10th Earl) of Dorset, wife of the 5th Earl De La Warr. She was succeeded by her second son, who later succeeded his elder brother as 7th Earl De La Warr, with which title the barony remains merged.

Barons Buckhurst (1567)

• see Earl of Dorset, third creation

Barons Buckhurst (1864)

• Elizabeth Sackville, 1st Baroness Buckhurst (1795-1870)
• Reginald Windsor Sackville, 2nd Baron Buckhurst (1817-1896), succeeded as 7th Earl De La Warr in 1873
• see Earl De La Warr