Saint Lucia
22 February 1979 (from UK)

Saint Pierre and Miquelon none (territorial collectivity of France; has been under French control since 1763)

Saint Vincent and the Grenadines
27 October 1979 (from UK)

Samoa
1 January 1962 (from New Zealand-administered UN trusteeship)

San Marino
3 September 301

Sao Tome and Principe
12 July 1975 (from Portugal)

Saudi Arabia
23 September 1932 (unification of the kingdom)

Senegal
4 April 1960 (from France); note - complete independence was
achieved upon dissolution of federation with Mali on 20 August 1960

Serbia and Montenegro
27 April 1992 (Federal Republic of Yugoslavia
or FRY - now Serbia and Montenegro - formed as self-proclaimed
successor to the Socialist Federal Republic of Yugoslavia or SFRY)

Seychelles
29 June 1976 (from UK)