Where is Islam most spoken in the world?

While "spoken" might be a bit misleading, as Islam is a religion and not a language, it is most practiced in Indonesia.

Here's why this is a bit tricky:

* Population: Indonesia has the largest Muslim population in the world, with over 231 million Muslims.

* Percentage: However, Islam isn't the *only* religion practiced in Indonesia. Other faiths like Christianity and Hinduism are also prevalent.

* "Spoken" vs. "Practiced": "Spoken" might imply the language Arabic, which is the language of the Quran and used in prayer. While Arabic is important in Islam, it's not the language spoken by the majority of Muslims worldwide.

Therefore, while Indonesia has the largest Muslim population, it's important to consider both the size of the population and the percentage of Muslims within a country when talking about where Islam is "most practiced."