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).
Hejazi Arabic
Notes:The varieties of Arabic spoken in the smaller towns and by the bedouin tribes in the Hejaz region are relatively under-studied. However, the speech of some tribes shows much closer affinity to other bedouin dialects, particularly those of neighboring Najd, than to those of the urban Hejazi cities. The dialects of northern Hejazi tribes merge into those of Jordan and Sinai, while the dialects in the south merge with those of 'Asir and Najd. Also, not all speakers of these bedouin dialects are figuratively nomadic bedouins; some are simply sedentary sections that live in rural areas, and thus speak dialects similar to those of their bedouin neighbors.