Dennis Henry Herbert, 1st Baron Hemingford, KBE, PC, DL (25 February 1869 – 10 December 1947) was a British Conservative politician.

Appointed a Knight Commander of the Order of the British Empire in 1929,[1] Herbert was admitted to the Privy Council in 1933 and on 1 February 1943 he was raised to the peerage as Baron Hemingford, of Watford in the County of Hertford.

[2] Lord Hemingford married Mary, daughter of Valentine Graeme Bell, on 9 June 1902.

He died in December 1947, aged 78, and was succeeded in the barony by his son Dennis Herbert.

Between 1918 and 1943, Herbert lived in a Victorian villa at 36 Clarendon Road, Watford.