Saint Martin (Jèrriais: St Martîn) is one of the twelve parishes of Jersey in the Channel Islands. Historically it was called "Saint Martin le Vieux" to distinguish it from the present day parish of Grouville (historically "Saint Martin de Grouville").

St. Martin is the only parish in Jersey not to conduct its municipal business from a Parish Hall. St. Martin has a Public Hall instead, having accepted money from the States of Jersey to provide an assembly room.