David Hadley Lange

{{short description|Canadian politician}}

{{Use Canadian English|date=January 2023}}

David Hadley Lange (born 1947) is a former Canadian provincial politician.{{cite web |url=http://www.saskarchives.com/sites/default/files/pdf/members_of_the_legislative_assembly.pdf |title=Archived copy |accessdate=2013-07-23 |url-status=dead |archiveurl=https://web.archive.org/web/20131219114059/http://www.saskarchives.com/sites/default/files/pdf/members_of_the_legislative_assembly.pdf |archivedate=2013-12-19 }} He was the NDP member of the Legislative Assembly of Saskatchewan for the constituency of Assiniboia-Bengough, from 1971 until 1975 and for the constituency of Bengough-Milestone from 1975 until 1978. He was the first and only representative of Assiniboia-Bengough, as it was replaced before the next election by the ridings of Bengough-Milestone and Assiniboia-Gravelbourg. Following the dissolution of the Assiniboia-Bengough riding, he was elected as representative for the newly created constituency of Bengough-Milestone. He did not run in the 1978 election and was replaced as representative of Bengough-Milestone by Progressive Conservative Robert Hugh Pickering.