Guar Sanji is a state constituency in Perlis, Malaysia, that has been represented in the Perlis State Legislative Assembly. The state constituency was created in 1984. It was first contested in 1986 and is mandated to return a single Assemblyman to the Perlis State Legislative Assembly under the first-past-the-post voting system. Since 2018, the State Assemblyman for Guar Sanji is Mohd Ridzuan Hashim from Parti Islam Se-Malaysia (PAS).