Viscount Hardinge, of Lahore and of Kings Newton in the County of Derby, is a title in the Peerage of the United Kingdom. It was created in 1846 for the soldier and Tory politician Sir Henry Hardinge. His son, the second Viscount, represented Downpatrick in Parliament. His great-great-grandson, the sixth Viscount, succeeded a distant relative as eighth Baronet, of Belle Isle in the County of Fermanagh, in 1986. This title had been created in the Baronetage of the United Kingdom 1801 for Richard Hardinge. He was the third son of Nicolas Hardinge, younger brother of Reverend Henry Hardinge and uncle of the latter's third son Henry Hardinge, 1st Viscount Hardinge. The baronetcy was created with special remainder to the heirs male of Richard Hardinge's father.
As of 31 January 2014 the present Baronet has not successfully proved his succession and is therefore not on the Official Roll of the Baronetage, with the baronetcy considered dormant since 1968.
Another member of the Hardinge family was the diplomat Charles Hardinge, 1st Baron Hardinge of Penshurst. He was the second son of the second Viscount Hardinge. George Nicholas Hardinge was an officer of the Royal Navy, second son of Reverend Henry Hardinge and elder brother of the first Viscount.
The family seat is Broadmere House, near Basingstoke, Hampshire.
The heir presumptive is the present holder's brother Hon. Jamie Alexander David Hardinge (b. 1996).
for further succession, see above