Sir Robert Gray Cornish Mowbray, 2nd Baronet, DL (21 May 1850 – 23 July 1916), was a British Conservative politician.

His mother was the daughter, and sole heir, of George Isaac Mowbray of Bishopwearmouth and the former Elizabeth Gray.

He was gazetted as a lieutenant in the part-time Royal Berkshire Militia on 1 June 1872, but he never joined the regiment for its annual training and resigned on 29 April 1874.

[2] He returned to the House of Commons at an unopposed by-election in March 1900 for the Brixton constituency,[4][5] and held that seat until he stood down at the 1906 general election.

[3] He lived at 'Warennes Wood' at Stratfield Mortimer in Berkshire and was appointed a deputy lieutenant of that county in 1900.