Sir George Warrender of Lochend, 4th Baronet, PC, FRS, FRSE (5 December 1782 – 21 February 1849) was a Scottish politician. In 1799, he succeeded to his father's baronetcy. Due to his lifestyle, he was nicknamed Sir Gorge Provender.
Born in Dunbar, he was the son of Lieutenant-Colonel Sir Patrick Warrender, 3rd Baronet and H. Blair. Warrender was educated at Christ Church, Oxford, where he matriculated in 1799 and at Trinity College, Cambridge, where he graduated with a Master of Arts in 1811. He served in the Berwickshire militia, reaching the rank of Lieutenant-Colonel.
Warrender was Member of Parliament (MP) for Haddington Burghs from 1807 to 1812 and for Truro from 1812 to 1818. He was further Member of Parliament for Sandwich from 1818 to 1826, for Westbury from 1826 to 1830, as well as for Honiton from 1830 to 1832.
Between 1812 and 1822, Warrender was Lord of the Admiralty and between 1822 and 1828, Commissioner of the Board of Control. On 4 February 1822, he was sworn of the Privy Council. Warrender was also a Fellow of the Royal Society.