Sir William Payne-Gallwey, 2nd Baronet (1807 – 19 December 1881) was an English Conservative Party politician who sat in the House of Commons from 1851 to 1880. Payne-Gallwey was the son of Sir William Payne-Gallwey, 1st Baronet and his wife Harriet Quin, daughter of the 1st Earl of Dunraven. His father was a British Army general and governor of the Leeward Islands. Payne-Gallwey was a major in the 7th Fusiliers and succeeded his father in the baronetcy in 1831. He was a deputy lieutenant and J.P. for the North Riding of Yorkshire.