North-East

• Iguazú National Park, home of Iguassu Falls. Also a UNESCO World heritage
• Chaco National Park
• Mburucuyá National Park
• Río Pilcomayo National Park
• Formosa National Park

Iguaçu Falls Iguaçu Falls For the cities where the falls are located, see Foz do Iguaçu, a major city located in the Brazilian state of Paraná Puerto Iguazú, a city located in the Argentinian province of Misiones. ... Elabana Falls is in Lamington National Park, part of the Central Eastern Rainforest Reserves World Heritage site in Queensland, Australia. ...

North-West

• El Baritú National Park
• Copo National Park
• Campo de los Alisos National Park
• Calilegua National Park
• El Rey National Park
• Los Cardones National Park

Central

• EL Palmar National Park
• Lihue Calel National Park
• Pre Delta National Park
• Quebrada del Condorito National Park
• San Guillermo National Park
• Sierra de las Quijadas National Park
• Talampaya Ischigualasto National Park - also a UNESCO world heritage site since 2000

South

• Lago Puelo National Park
• Laquna Blanca National Park
• Lanín National Park
• Los Alerces National Park
• Los Arrayanes National Park
• Los Glaciares National Park - also a UNESCO heritage site
• Nahuel Huapi National Park
• Francisco P. Moreno National Park
• Monte León National Park
• Tierra del Fuego National Park