| Country | Refugees and internally displaced persons |
| Rwanda | refugees (country of origin): 46,272 (Democratic Republic of the Congo); 4,400 (Burundi) (2007) |
| Saint Barthelemy | void |
| Saint Helena | void |
| Saint Kitts and Nevis | void |
| Saint Lucia | void |
| Saint Martin | void |
| Saint Pierre and Miquelon | void |
| Saint Vincent and the Grenadines | void |
| Samoa | void |
| San Marino | void |
| Sao Tome and Principe | void |
| Saudi Arabia | refugees (country of origin): 240,015 (Palestinian Territories) (2007) |
| Senegal | refugees (country of origin): 19,630 (Mauritania) IDPs: 22,400 (approximately 65% of the IDP population returned in 2005, but new displacement is occurring due to clashes between government troops and separatists in Casamance region) (2007) |
| Serbia | refugees (country of origin): 71,111 (Croatia); 27,414 (Bosnia and Herzegovina); 206,000 (Kosovo), note - mostly ethnic Serbs and Roma who fled Kosovo in 1999 (2007) |
| Seychelles | void |
| Sierra Leone | refugees (country of origin): 27,311 (Liberia) (2007) |
| Singapore | void |
| Slovakia | void |
| Slovenia | void |
| Solomon Islands | IDPs: 5,400 (displaced by tsunami on 2 April 2007) (2007) |
| Somalia | IDPs: 1.1 million (civil war since 1988, clan-based competition for resources) (2007) |
| South Africa | refugees (country of origin): 10,772 (Democratic Republic of Congo); 7,818 (Somalia); 5,759 (Angola) (2007) |
| South Georgia and the South Sandwich Islands | void |
| Southern Ocean | void |
| Spain | void |
| Spratly Islands | void |
| Sri Lanka | IDPs: 460,000 (both Tamils and non-Tamils displaced due to long-term civil war between the government and the separatist Liberation Tigers of Tamil Eelam (LTTE)) (2007) |
| Sudan | refugees (country of origin): 157,220 (Eritrea); 25,023 (Chad); 11,009 (Ethiopia); 7,895 (Uganda); 5,023 (Central African Republic) IDPs: 5.3 - 6.2 million (civil war 1983-2005; ongoing conflict in Darfur region) (2007) |
| Suriname | void |
| Svalbard | void |
| Swaziland | void |
| Sweden | void |
| Switzerland | void |
| Syria | refugees (country of origin): 1-1.4 million (Iraq); 522,100 (Palestinian Refugees (UNRWA)) IDPs: 305,000 (most displaced from Golan Heights during 1967 Arab-Israeli War) (2007) |
| Taiwan | void |
| Tajikistan | void |