Major Harry Barnes (5 December 1870 – 12 October 1935) was a radical United Kingdom Liberal Party politician, architect and author specialising in housing and town planning. He first stood for parliament in 1918 when he was selected as the Liberal candidate for Newcastle upon Tyne East. He had served as a Major in the Northumberland Fusiliers Voluntary Regiment. He had been the District Valuer for Newcastle upon Tyne from 1916–1918, so knew the town well. The seat was a newly created constituency and his prospects of winning were helped when no Unionist opponent came forward and he was endorsed by the Coalition Government led by David Lloyd George;