Cusco Declaration

{{Short description|2004 declaration of intent to form a South American Union}}

{{Unreferenced|date=December 2022}}

{{Infobox document

| document_name = Cusco Declaration

| date_created = {{start date|2004|12|8|df=yes}}

| location_of_document = Cusco, Peru

| signers = 12 South American countries

| purpose = Declaration of intent to establish the Union of South American Nations

}}

The Cusco Declaration, formally titled Preamble to the Foundation Act of the South American Union, is a two-page declaration of intent signed by 12 South American countries during the Third South American Summit on 8 December 2004 in Cusco, Peru. It announces the foundation of the Union of South American Nations. It called for a regional parliament, a common market and a common currency.