Which language is spoken by most people of the Arabian Peninsula?

The Arabic language is the most common language spoken by the people of the Arabian Peninsula.12

Arabic is a Semitic language that originated on the peninsula. While it serves as the official language across the region, it exists in two primary forms:32

• Modern Standard Arabic: Derived from Classical Arabic—the language of the Qur'an—this is the literary and formal language used in publications, broadcasts, and education.134
• Vernacular Dialects: These are the spoken varieties used in daily communication. There is significant regional variation in these dialects, and while they share common features, they exhibit varying degrees of mutual intelligibility.123

In addition to these Arabic varieties, other languages are spoken in the region due to the presence of expatriate workers and historical linguistic diversity, including English, Persian, Urdu, and various South Asian languages.34