Keith James Brown (born 20 December 1961) is a Scottish politician serving as Deputy Leader of the Scottish National Party (SNP) since 2018 and Cabinet Secretary for Justice and Veterans since 2021. He is a former Royal Marines commando and has been a Member of the Scottish Parliament (MSP) since 2007, first representing the Ochil constituency from 2007 to 2011, then the Clackmannanshire and Dunblane constituency since 2011.