Saudi Arabia
The official language of Saudi Arabia is Arabic. The three main regional variants spoken by Saudis are Hejazi Arabic (about 6 million speakers), Najdi Arabic (about 8 million speakers), and Gulf Arabic (about 0.2 million speakers). Saudi Sign Language is the principal language of the deaf community. The large expatriate communities also speak their own languages, the most numerous of which are Tagalog (700,000), Rohingya (400,000), Urdu (380,000), Egyptian Arabic (300,000), and Indonesian (250,000).
Eastern Arabia
The Arab states of the Persian Gulf are solely Eastern Arabia, the borders of the Arabic-speaking Gulf do not extend beyond Eastern Arabia. The modern-day states of Bahrain, Kuwait, Oman, Qatar and UAE are the archetypal Gulf Arab states. Saudi Arabia is often considered a Gulf Arab state although most Saudis do not live in Eastern Arabia.