The Ministry of Justice (MJUS) was the department of the Government of Spain responsible for preparing and carrying out the government policy in order to bring the legal system off, specially in criminal, civil, commercial and procedural law affairs, supporting the Administration of Justice and the legal and international cooperation.

The Spanish government departments, commonly known as Ministries, are the main bodies through which the Government of Spain exercise its executive authority. They are also the top level of the General State Administration. The ministerial departments and their organization are created by Royal Decree signed by the Monarch and the Prime Minister and all of them are headed by a Cabinet member called Minister.