Diane Griffin, OPEI (born March 18, 1947) is a Canadian conservationist from Prince Edward Island. Griffin is a former provincial deputy minister of environmental resources and a recipient of the Governor General's Conservation Award, the Queen Elizabeth II Diamond Jubilee Medal and the P.E.I. Environment award.^[1] She also served as executive director of the Island Nature Trust.^[1] In 2010, Griffin was awarded the Prince Edward Island Medal of Merit for her contributions to the environment of the province.^[2] On October 27, 2016, Griffin was named to the Senate of Canada by Prime Minister Justin Trudeau to sit as an independent.^[3] Until her appointment, she served as a councillor on the Stratford, P.E.I. town council.^[3] Griffin assumed office on November 10, 2016. She subsequently jointed the Independent Senators Group.^{[citation needed]} On November 4, 2019, she joined the Canadian Senators Group.^[4] After turning 75 on March 18, 2022, Senator Griffin retired from the senate due to mandatory retirement rules.