NationStates

The most widely spoken language in Arumdaum is English, spoken by 98.6% of the population.

Venolia's main and official language is English. The ceremonial language is Latin. We use Latin for religion, coronations, weddings, funerals, and any other ceremonial or religious rites. Most adults that were born here are fluent in both English and Latin. Children are taught it at an early age. But all road signs, most advertisements, tv programs, and other stuff like that are in English.

Latin : PAX PER BELLVM MMXII
English : Peace Through War 2012

Imperial Tagalog is the official language of Kamaynilaan, spoken by 100% of all native-born subjects and 86% of the entire population when counting foreign expats.

The official languages of Zeorus are English and Zeira (the language of the indigenous peoples). Spanish is a recognized minority language. Some languages from neighboring indigenous tribes live on, but they have not been spoken widely since these tribes were annexed by Zeorus in the nineteenth century. These include Errom, Alema, Grezi, and Luxen. All seven languages mentioned here are written with Latin characters.

The languages spoken in New Kesheru are: Common (English), Kesherian (a form of telepathy), Twinki (simlar to Common but a much higher pitch and mostly slang), and of course American.

The two main languages of my country are English and German.

Languages spoken in Gothiya:
Gothic (Around 95%), Russian (Up to 10% have Russian as first language)
Almost all know some basic Russian

English and Dutch.

My coutry speaks English only, maybe 2% of something else.

Pig Latin and German and Dutch

The official and only language of New Lyrane is Lyranian (Rireinutire).

Sa Rireinuhape niya iakava. Ta enakasekisivo.
It's a Lyranian thing. You wouldn't understand.

Haydanian. (I'm getting annoyed when people say it wrong. You say it
'hay-dain-ee-an')

Every citizen can speak English though.

Allmann mool is the national language of this land.

100% Formal Latin Comprehension, many with conversational Latin.
12%, those involved in foreign trade, speach English.
Some scholars speak other languages.

The official language of Skako is Spanish. French is a recognized regional language.

ENGLISH AND LOCKAN ARE EQUALLY SPOKEN.
QM HALUGAHAGLGUAH EN YHFGA! (IN HALUGAHAGLGUAH WE TRUST!)

National Language of Xoronian
But common languages are English, German, Russian, and French

Ex Aquin koos eckt
The Queen knows best

Here in Gaul we only speak Slavic languages.
Serbian
Bulgarian

Eburneans usually speak English. However, in recent years, Grohevaller has become a large language in our country with about 10% of our population being Grohevaller. It is based loosely on English in terms of structure and sound but varies wildly in its written form which is more like Dutch.

The only language spoken in Valkyrjan is Valkish.

Maplish is the official language... Thats THATS !

Edit : My lucky 999 post !!

Official Languages of Plenomia: English, German, Italian

Unofficial languages: French and Spanish

Kengrieland has a rich linguistic heritage. There are three languages granted official status in Kengrieland: Oerelian, Olbugish and Kengritian (in Oerelian: örlänsk, olbugyänsk, këngränsk, in Olbguish: Orleka, Albukka, Keńrika, in Kengritian: Orlestsu, Olbustsu, Kengritsu). The majority of people speak Oerelian at home, however many speak both Oerelian and Olbugish in their daily lives as most (if not all) aspects of Kengritian culture is bilingual in nature. Education is conducted in a bilingual environment beginning from infant school, and from secondary school, classes are taught in the preferred language of the instructor so all children must be bilingual before that time. The government actively encourages parents, and families in general, to speak both languages at home. Although 'Kengritsu' language lends its name to the country (which literally means 'land of the Kengrits'), it is now only a minority language which is protected within the constitution of 1698. However, Kengritian is taught in only a handful of schools and employers expect Kengritian speakers to also speak either Oerelian or Olbugish, or both. This has led to some Kengritian speakers to self-segregate, living in exclusively Kengritian-speaking neighbourhoods, opening Kengritian-medium schools and developing Kengritian-speaking culture outside of the main culture of the country.

Here is some examples of Oerelian:
Halö, ją kun vej Kengriëland â vię tâlë olëmęś örlänsk hej. Höj âr dat bam deij?
Hello, I come from Kengrieland and we generally speak Oerelian here. What is it like in your country?

And Olbugish:
Halla, ejk komar van Keńrilantu i mia śvekkan hërrëm ok Albukka. Hva śvekkas Do ińa Doram Lantu?
Hello, I come from Kengrieland and we speak also Olbugish here. What do you speak in your country?

And finally, Kengritian:
Hai, jega se da Kengrita an et se en Domađ, te justa en kleńe Ondhaal van Léit hir jogar Lań sbréig en bersùtei kon.
Hello, I come from Kengrieland and it is a shame that only a few people can speak and understand my language here.

All languages developed from Proto-Germanic.

Some statistics:
Oerelian speakers - 99% (3% speaking only Oerelian, 96% being multilingual with Olbugish and/or Kengritian)
Olbugish speakers - 99% (11% speaking only Olbugish, 88% being multilingual with Oerelian and/or Kengritian)
Kengritian speakers - 10% (1.5% speaking only Kengritian, 8.5% being multilingual with Oerelian and/or Olbugish)
Other: 1% (including, Chinese Mandarin, Cantonese, Swedish, Norwegian)

I can't remember. It's probably Latin or something.