Peso is the name of the currency of various countries:
- Argentina: Argentine peso (ISO 4217: ARS)
- Chile: Chilean peso (CLP)
- Colombia: Colombian peso (COP)
- Cuba: Cuban peso (CUP)
- Dominican Republic: Dominican peso (DOP)
- Mexico: Mexican peso (MXN, previously MXP)
- Philippines: Philippine peso (PHP)
- Uruguay: Uruguayan peso (UYU)
Portuguese-speaking Guinea-Bissau previously used pesos (GWP) prior to adopting the CFA franc (XAF) upon accession to the West African Economic and Monetary Union (UEMOA) on 1 May 1997.