Hejaz
Historically, the Hejaz has always seen itself as separate from the rest of Saudi Arabia. The Hejaz is the most populated region in Saudi Arabia; 35% of all Saudis live there. Hejazi Arabic is the most widely spoken dialect in the region. Saudi Hejazis are of ethnically diverse origins.
Influence of Arabic on other languages
Arabic has had a great influence on other languages, especially in vocabulary. The influence of Arabic has been most profound in those countries dominated by Islam or Islamic power. Arabic is a major source of vocabulary for languages as diverse as Amharic, Baluchi, Bengali, Berber, Bosnian, Chaldean, Chechen, Croatian, Dagestani, English, German, Gujarati, Hausa,
Hebrew, 
Hindi,
Kazakh, Kurdish, Kutchi, Kyrgyz, Malay (Malaysian and Indonesian), Pashto, Persian, Punjabi, Rohingya, Romance languages (French, Catalan, Italian, Portuguese, Sicilian, Spanish, etc.) Saraiki, Sindhi, Somali, Sylheti, Swahili, Tagalog, Tigrinya, Turkish, Turkmen, Urdu, Uyghur, Uzbek, Visayan and Wolof as well as other languages in countries where these languages are spoken. For example, the Arabic word for "book" (كتاب "kitāb") is used in most of the languages listed. Other languages such as Maltese and Nubi derive from Arabic, rather than merely borrowing vocabulary. Spanish has the largest Arabic influenced vocabulary outside the Islamic world due to Muslim rule in the Iberian Peninsula from 711 until 1492 known as Al-Andalus, although Spain's re-christianization and resulting loss of contact with Quranic Arabic has led to a significant shift in both meaning and pronunciation of Spanish words of Arabic etymology.