The Argentine Interior Security System (Spanish: Sistema de Seguridad Interior or SSI) is the official name of the public security service of Argentina.

The Interior Security System consists of the following individuals, agencies and dependencies:

• President of Argentina
• Governors and police agencies of the Argentine provinces
• Argentine National Congress
• Ministries of Interior, Security, Defence, and Justice
• Policía Federal Argentina (Argentine Federal Police; PFA)
• Gendarmería Nacional Argentina (Argentine National Gendarmerie; GNA)
• Prefectura Naval Argentina (Argentine Naval Prefecture; PNA)

The Interior Security System came online with the 1991.^[1]

• Argentine Federal Police
• Argentine National Gendarmerie
• Argentine Naval Prefecture
• Buenos Aires Police
• Santa Fe Province Police

• Interior Security Law 24.059 (in Spanish)