The Tennyson d'Eyncourt Baronetcy, of Carter's Corner Farm in the Parish of Herstmonceux in the County of Sussex, is a title in the Baronetage of the United Kingdom. It was created on 3 February 1930 for the naval architect Eustace Tennyson d'Eyncourt. He was a grandson of Charles Tennyson d'Eyncourt.

Another member of the Tennyson family was poet Alfred Tennyson, 1st Baron Tennyson. He was the nephew of Charles Tennyson d'Eyncourt.

• Sir Eustace Henry William Tennyson d'Eyncourt, 1st Baronet (1868–1951)
• Sir Eustace Gervais Tennyson d'Eyncourt, 2nd Baronet (1902–1971)
• Sir John Jeremy Eustace Tennyson d'Eyncourt, 3rd Baronet (1927–1988)
• Sir Giles Gervais Tennyson d'Eyncourt, 4th Baronet (1935–1989)
• Sir Mark Gervais Tennyson d'Eyncourt, 5th Baronet (born 1967)

There is no heir to the baronetcy.

• Baron Tennyson