George Dinsdale (August 14, 1887 in Leven, East Riding of Yorkshire, England – September 21, 1943) was a politician in Manitoba, Canada. He served as a Conservative representative in the Legislative Assembly of Manitoba from 1932 until his death. As mayor, Dinsdale presided over sharp tax increases and a burgeoning bank overdraft. He was re-elected as mayor in 1920, but lost to Harry Cater in 1921. Cater again defeated Dinsdale in 1922, despite Dinsdale's popularity among the city's ethnic communities.