Lists of countries and territories by official language

This is a list of lists of countries and territories by official language.

Provincial or state level
Secondary provincial or state language
National level
Italian Linguasphere. Legend
Native language
Administrative language
Secondary language or non-official.
Italophone minorities
Malay Linguasphere.
Indonesia
Malaysia
Singapore and Brunei, where Standard Malay is an official language
East Timor, where Indonesian is a working language
Southern Thailand and the Cocos Isl., where other varieties of Malay are spoken
Global spread of Portuguese:
Native language and official
Official and administrative language