Countries of the World: S
- Saint Helena
- Sao Tome and Principe
- Senegal
- Seychelles
- Sierra Leone
- Somalia
- South Africa
- Sudan
- Swaziland
- Singapore
- Spratly Islands
- Sri Lanka
- Saint Kitts and Nevis
- Saint Lucia
- Saint Vincent and the Grenadines
- San Marino
- Serbia and Montenegro
- Slovakia
- Slovenia
- Spain
- Svalbard
- Sweden
- Switzerland
- Saudi Arabia
- Syria
- Saint Pierre and Miquelon
- Samoa
- Solomon Islands
- Southern Ocean
- South Georgia and the South Sandwich Islands
- Suriname