| Ref |
nom du pays |
capitale |
monnaies |
continent |
drapeau |
| SAR | SAARLAND les timbres | Saarbrücken | franc de la Sarre, puis Deutsche Mark, puis euro | Europe |  |
| SAK | SACHA (YAKUTIA) (RUSSIA) les timbres | Yakutsk | ruble = 100 kopecks | Asie |  |
| SKL | SACHALIN (RUSSIA) les timbres | Yuzhno-Sakhalinsk | ruble = 100 kopecks | Asie |  |
| SAH | SAHARA OCCIDENTALE les timbres | El Aiaún | peseta = 100 centimes | Afrique |  |
| SKI | SAINT KITTS les timbres | Basseterre | East Caribbean doillar = 100 cents | Amérique |  |
| SAV | SAINT VINCENT les timbres | Kingstown | East Caribbean dollar = 100 cents | Amérique |  |
| SVG | SAINT VINCENT E GRENADINE les timbres | Kingstown | East Caribbean dollar = 100 cents | Amérique |  |
| SGB | SAINT VINCENT E GRENADINE - BEQUIA les timbres | Port Elizabeth | East Caribbean dollar = 100 cents | Amérique |  |
| SGC | SAINT VINCENT E GRENADINE - CANOUAN les timbres | Charlestown | East Caribbean dollar = 100 cents | Amérique |  |
| SGM | SAINT VINCENT E GRENADINE - MAYREAU les timbres | Old Wall | East Caribbean dollar = 100 cents | Amérique |  |
| SGQ | SAINT VINCENT E GRENADINE - MUSTIQUE les timbres | | East Caribbean dollar = 100 cents | Amérique |  |
| SGU | SAINT VINCENT E GRENADINE - UNION ISLAND les timbres | Clifton | East Caribbean dollar = 100 cents | Amérique |  |
| SGY | SAINT VINCENT E GRENADINE - YOUNG ISLAND les timbres | Kingstown | East Caribbean dollar = 100 cents | Amérique | |
| SPI | SAINT-PIERRE E MIQUELON les timbres | Saint-Pierre | French franc = 100 centimes, euro = 100 cents (from 2002) | Amérique |  |
| SAM | SAMOA les timbres | Apia | tala = 100 sene | Océanie |  |
| SMA | SAN MARINO les timbres | San Marino | lira = 100 centesimi, euro = 100 cents (from 2002) | Europe |  |
| SLU | SANTA LUCIA les timbres | Castries | East Caribbean dollar = 100 cents | Amérique |  |
| SHE | SANT`ELENA les timbres | Jamestown | Saint Helena pound = 100 pence | Afrique |  |
| STH | SÃO TOMÉ E PRÍNCIPE les timbres | Saõ Tomé | dobra = 100 centimos | Afrique |  |
| SEN | SENEGAL les timbres | Dakar | CFA franc = 100 centimes | Afrique |  |
| SER | SERBIA les timbres | Belgrade | Serbian dinar = 100 paras | Europe |  |
| SEY | SEYCHELLES les timbres | Victoria | Seychellois rupee = 100 cents | Afrique |  |
| SHA | SHARJAH les timbres | Sharjah | rupee = 100 naye paise, riyal = 100 dirhams (from 1966) | Asie |  |
| SIB | SIBERIA ORIENTALE (RUSSIA) les timbres | | ruble = 100 kopecks | Asie |  |
| SIE | SIERRA LEONE les timbres | Freetown | leone = 100 cents | Afrique |  |
| SIN | SINGAPORE les timbres | Singapore | Singapore dollar = 100 cents | Asie |  |
| SYR | SIRIA les timbres | Damascus | Syrian pound = 100 piastres | Asie |  |
| SQU | SLOVACCHIA les timbres | Bratislava | Slovak koruna = 100 halierov | Europe |  |
| SLO | SLOVENIA les timbres | Ljubljana | tolar = 100 stotin, euro = 100 cents (from 2007) | Europe |  |
| SMO | SMOLENSK (RUSSIA) les timbres | Smolensk | ruble = 100 kopecks | Europe |  |
| SOI | SOMALIA les timbres | Mogadishu | Somali shilling = 100 centesimi | Afrique |  |
| SOL | SOMALILAND les timbres | Hargeisa | Somaliland shilling = 100 centisimi | Afrique |  |
| ESP | SPAGNA les timbres | Madrid | peseta = 100 centimos, euro = 100 cents (from 2002) | Europe |  |
| SRI | SRI LANKA (CEYLON) les timbres | Colombo | Sri Lankan rupee = 100 cents | Asie |  |
| USA | STATI UNITI (USA) les timbres | Washington, D.C. | US dollar = 100 cents | Amérique |  |
| OMS | STATO DELL`OMAN les timbres | Nizwa | Omani rial = 1000 baizas | Asie |  |
| ADK | STATO KATHIRI DI HADHRAMAUT IN ADEN les timbres | | dinar = 1000 fils | Asie |  |
| ADY | STATO KATHIRI DI SEIYUN IN ADEN les timbres | | dinar = 1000 fils | Asie |  |
| ADM | STATO MAHRA DI ADEN les timbres | | dinar = 1000 fils | Asie |  |
| ADH | STATO QU`AITI DI HADHRAMAUT IN ADEN les timbres | | dinar = 1000 fils | Asie |  |
| RSA | SUDAFRICA (RSA) les timbres | Pretoria | rand = 100 cents | Afrique |  |
| SUD | SUDAN les timbres | Khartoum | Sudanese pound = 100 piastres | Afrique |  |
| OMA | SULTANATO DELL`OMAN les timbres | Muscat | Omani rial = 1000 baizas | Asie |  |
| SUR | SURINAME les timbres | Paramaribo | gulden = 100 cents, Surinamese dollar = 100 cents | Amérique |  |
| SUE | SVEZIA les timbres | Stockholm | Swedish krona = 100 öre | Europe |  |
| SUI | SVIZZERA les timbres | Berne | Swiss franc = 100 centimes | Europe |  |