Silver Donald Cameron CM ONS (June 21, 1937 – June 1, 2020) was a Canadian journalist, author, playwright, and university teacher whose writing focused on social justice, nature, and the environment. His 15 books of non-fiction dealt with everything from history and politics to education and community development. His magazine articles numbered in the hundreds and his newspaper columns appeared in The Globe and Mail and the Halifax Chronicle Herald. He also wrote extensively for provincial and federal government departments as well as for corporate and non-profit clients.