What language do most countries speak?

It's impossible to say definitively which language is spoken in "most countries" because there isn't a single, universally accepted definition of what constitutes a "country".

However, if we consider the number of countries where a language is an official language, English is likely the most spoken language.

Here's why:

* Number of Official Languages: English is an official language in over 60 countries, more than any other language.

* Global Influence: English is widely used in international communication, business, education, and media.

* Historical Factors: The British Empire's global reach has led to the spread of English as an official language in many former colonies.

However, it's important to remember:

* Other Languages with High Official Status: Mandarin Chinese, French, Spanish, Arabic, and Hindi are also official languages in many countries.

* Native Speakers: While English has a large number of official languages, Mandarin Chinese has the most native speakers globally.

* Regional Differences: Language usage varies significantly within countries.

Ultimately, it's more accurate to say that English is the most widely used language internationally, while Mandarin Chinese boasts the largest number of native speakers globally.