| Country | Currency Code | Currency |
|---|---|---|
| Slovakia | EUR | Euro |
| Slovenia | EUR | Euro |
| Solomon Islands | SBD | Solomon Is. Dollar |
| Somalia | SOS | Somali Shilling |
| South Africa | ZAR | South Africa Rand |
| South Sudan | SSP | South Sudanese Pound |
| Spain | EUR | Euro |
| Sri Lanka | LKR | Sri Lanka Rupee |
| St. Vincent and the Grena | XCD | E.C. Dollar |
| Sudan | SDG | Sudanese Pound |