Blue Shield may refer to:
Blue Shield emblem, a distinctive symbol marking cultural property defined by the 1954 Hague Convention Blue Shield International, an international organization named after the Blue Shield emblem that protects cultural property in emergencies Blue Cross and Blue Shield Association, an American health insurance group Blue Shield of California, health plan based in San Francisco, California Blue Shield of California Building Blue Shield (character), a Marvel Comics Superhero Blue Code of Silence, also known as blue shield, an informal code of silence among police officers in the US