Lorna Slater (born 27 September 1975) is a Canadian-born Scottish politician who has served as Minister for Green Skills, Circular Economy and Biodiversity since 2021. She has served as co-leader of the Scottish Greens alongside Patrick Harvie since 2019, and is one of the first Green politicians in the UK to serve as a government minister. Slater has been a Member of the Scottish Parliament (MSP) for the Lothian region since 2021.