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St Lucia For further information click here. Adopted 1 March 1967.

Samoa For further information click here. Adopted 1949.

Scotland (St Andrew) For further information click here. Adopted in the 15th century.

Scotland (Lion - Royal Standard of Scotland) For further information click here. Adopted circa 1222. The Royal Standard of Scotland.

Seychelles For further information click here. Adopted 18 June 1986.

Singapore For further information click here. Adopted 1959.

Smiley Face (small and large) For further information click here. First appeared in 1948, but this design dates from 1963.

Solomon Islands For further information click here. Adopted in 1977.

South Africa For further information click here. Adopted in 1994.

South Korea For further information click here. The original version dates from 1883, whilst the current version was adopted in 1948.

Spain For further information click here. First used as a naval ensign (no coat of arms) in 1785, adopted in 1978.

Spanish Supporter - Osborne Bull For further information click here.

Sri Lanka For further information click here. Adopted in 1972.

Sweden For further information click here. Adopted in 1906.

Switzerland For further information click here. Adopted in 1889. One of only a couple of square country flags in the world.