Saint Vincent and the Grenadines
English, French patois

Samoa
Samoan (Polynesian), English

San Marino
Italian

Sao Tome and Principe
Portuguese (official)

Saudi Arabia
Arabic

Senegal
French (official), Wolof, Pulaar, Jola, Mandinka

Serbia and Montenegro
Serbian 95%, Albanian 5%

Seychelles
English (official), French (official), Creole

Sierra Leone
English (official, regular use limited to literate
minority), Mende (principal vernacular in the south), Temne
(principal vernacular in the north), Krio (English-based Creole,
spoken by the descendants of freed Jamaican slaves who were settled
in the Freetown area, a lingua franca and a first language for 10%
of the population but understood by 95%)

Singapore
Chinese (official), Malay (official and national), Tamil
(official), English (official)