List of Countries that Start with S

1. Saint Kitts and Nevis
2. Saint Lucia
3. Saint Vincent and the Grenadines
4. Samoa
5. San Marino
6. Sao Tome and Principe
7. Saudi Arabia
8. Senegal
9. Serbia
10. Seychelles
11. Sierra Leone
12. Singapore
13. Slovakia
14. Slovenia
15. Solomon Islands
16. Somalia
17. South Africa
18. South Sudan
19. Spain
20. Sri Lanka
21. Sudan
22. Suriname
23. Sweden
24. Switzerland
25. Syria

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List of Countries that Start with S by Population

(Estimates as of 2024–2025)

1. Sudan – 49,281,918
2. South Africa – 60,832,129
3. Spain – 48,519,983
4. Saudi Arabia – 37,875,986
5. Sri Lanka – 21,847,004
6. Syria – 24,205,192
7. Senegal – 18,511,430
8. Somalia – 18,228,758
9. South Sudan – 11,088,796
10. Serbia – 6,647,003
11. Sweden – 10,619,323
12. Switzerland – 8,888,562
13. Slovakia – 5,404,301
14. Sierra Leone – 8,791,092
15. Slovenia – 2,094,060
16. Suriname – 636,848
17. Singapore – 6,086,037
18. Solomon Islands – 757,387
19. Samoa – 227,790
20. Sao Tome and Principe – 238,420
21. Seychelles – 107,660
22. San Marino – 34,091
23. Saint Lucia – 179,851
24. Saint Vincent and the Grenadines – 111,551
25. Saint Kitts and Nevis – 47,755

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List of Countries that Start with S by Land Area

1. Sudan – 1,861,484 km²
2. Saudi Arabia – 2,149,690 km²
3. South Africa – 1,221,037 km²
4. Spain – 505,992 km²
5. South Sudan – 644,329 km²
6. Somalia – 637,657 km²
7. Sweden – 450,295 km²
8. Syria – 185,180 km²
9. Senegal – 196,722 km²
10. Suriname – 163,820 km²
11. Serbia – 88,361 km²
12. Slovakia – 49,035 km²
13. Solomon Islands – 28,896 km²
14. Slovenia – 20,273 km²
15. Switzerland – 41,284 km²
16. Sri Lanka – 65,610 km²
17. Sierra Leone – 71,740 km²
18. Singapore – 728 km²
19. Sao Tome and Principe – 964 km²
20. Seychelles – 455 km²
21. San Marino – 61 km²
22. Samoa – 2,842 km²
23. Saint Lucia – 617 km²
24. Saint Vincent and the Grenadines – 389 km²
25. Saint Kitts and Nevis – 261 km²