Sir John Kennaway, 1st baronet (6 March 1758 – 1 January 1836), of Escot House in the parish of Talaton in Devon, was a British soldier and diplomat.
He served in the Carnatic, 1780–86. He served as British Resident at the Court of Nizam Ali Khan, Asaf Jah II, Nizam of Hyderabad. In recognition of his part in the negotiation of the 1790 alliance between the Nizam and the East India Company against Tipoo Sultan, in 1791 he was created a baronet "of Hyderabad". He concluded a treaty with Tipu Sultan in 1792.
Kennaway married Charlotte Amyatt, daughter of James Amyatt; they had seven sons and five daughters. Their son, Sir John Kennaway, 2nd Bt., married Emily Frances Kingscote (b. 2 Aug 1805, d. 16 May 1858) on 28 April 1831.