Marlaina Danielle Smith, (born April 1, 1971) is a former Canadian politician and journalist. Smith served as leader of the Wildrose Party from October 2009 to December 17, 2014 when she resigned to cross the floor and join the governing Progressive Conservative Association of Alberta caucus. She represented the riding of Highwood in the Legislative Assembly of Alberta. On March 28, 2015, she lost the PC nomination for Highwood to Okotoks Councillor Carrie Fischer.