Robert Harmen "Rob" Anderson (born June 13, 1977) is a Canadian politician and a former Member of the Legislative Assembly of Alberta; he represented the constituency of Airdrie.
He was a Progressive Conservative until he crossed the floor on January 4, 2010 to join the Wildrose Party.
He was reelected in the 2012 Alberta general election, with 16 other Wildrose MLAs to form the Official Opposition.
On December 17, 2014, Anderson resigned from the Wildrose caucus to cross the floor and rejoin the governing Progressive Conservative Association of Alberta caucus, along with eight other Wildrose MLAs.