South Georgia and the South Sandwich Islands
Liberation Day, 14 June
(1982)
Spain
Hispanic Day, 12 October
Sri Lanka
Independence Day, 4 February (1948)
Sudan
Independence Day, 1 January (1956)
Suriname
Independence Day, 25 November (1975)
Svalbard
NA
Swaziland
Independence Day, 6 September (1968)
Sweden
Flag Day, 6 June
Switzerland
Founding of the Swiss Confederation, 1 August (1291)
Syria
Independence Day, 17 April (1946)