Sovereign countries (25)
Twenty-five sovereign UN member states have English names beginning with S — the most of any letter in the alphabet. Several inhabited territories, dependencies, and special zones also start with S, listed below in their own section. The total count of "S" entries depends on which list you consult, but the sovereign-nation answer is fixed at twenty-five.
Saint Kitts and Nevis
Basseterre · The Caribbean
View Report →
Saint Lucia
Castries · The Caribbean
View Report →
Saint Vincent and the Grenadines
Kingstown · The Caribbean
View Report →
Samoa
Apia · Oceania
View Report →
San Marino
San Marino · Europe
View Report →
Sao Tome and Principe
Sao Tome · Africa
View Report →
Saudi Arabia
Riyadh · Middle East
View Report →
Senegal
Dakar · Africa
View Report →
Serbia
Belgrade · Europe
View Report →
Seychelles
Victoria · Africa
View Report →
Sierra Leone
Freetown · Africa
View Report →
Singapore
Singapore · Asia
View Report →
Slovakia
Bratislava · Europe
View Report →
Slovenia
Ljubljana · Europe
View Report →
Solomon Islands
Honiara · Oceania
View Report →
Somalia
Mogadishu · Africa
View Report →
South Africa
Pretoria · Africa
View Report →
South Sudan
Juba · Africa
View Report →
Spain
Madrid · Europe
View Report →
Sri Lanka
Colombo · Asia
View Report →
Sudan
Khartoum · Africa
View Report →
Suriname
Paramaribo · South America
View Report →
Sweden
Stockholm · Europe
View Report →
Switzerland
Bern · Europe
View Report →
Syria
Damascus · Middle East
View Report →Territories and other entities (3)
Inhabited territories, dependencies, and special zones whose English names also begin with S. These are not sovereign UN member states but have their own administrative status.
Saint Helena, Ascension and Tristan da Cunha
British Overseas Territory
View Report →
Saint Pierre and Miquelon
Overseas collectivity of France
View Report →
Svalbard and Jan Mayen
Territories of Norway
View Report →Related letter lookups
Browsing the alphabet is a popular way to teach geography. Try the neighbouring letters:
- Countries That Start With R — Three nations — Romania, Russia, and Rwanda.
- Countries That Start With T — Twelve nations from Tajikistan to Turkmenistan.
- Countries That Start With A — Eleven nations from Afghanistan to Azerbaijan.
Quick answer for skimmers
Q: How many countries start with S?
A: Twenty-five sovereign UN member states — the most of any letter.
Q: What is the difference between Slovakia and Slovenia?
A: Two distinct Central European countries often confused. Slovakia (capital Bratislava) was part of Czechoslovakia until 1993; Slovenia (capital Ljubljana) was part of Yugoslavia until 1991. Different languages, different histories.
Q: What is the difference between Sudan and South Sudan?
A: South Sudan seceded from Sudan in 2011 after a referendum, becoming the world's newest UN member state. Both are now separate countries.
Country profiles mentioned in this post:

English
Español
中文
हिन्दी
Français
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Samoa
San Marino
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Sudan
Spain
Sri Lanka
Sudan
Suriname
Sweden
Switzerland
Syria