Colin Fox (born 17 June 1959, in Motherwell) is a national co-spokesperson of the Scottish Socialist Party (SSP). He was a Member of the Scottish Parliament (MSP) for the Lothians region from 2003 to 2007. Described in The Herald as "one of Scotland's most prominent socialists", he is a founding member of the SSP and Scotland's longest-serving party leader or spokesperson, having been originally elected as the SSP's convener in February 2005. He was a member of the Yes Scotland Advisory Board.