Gulf Arabic (also known as Khaliji, خليجي Khalījī local pronunciation: [χɐˈliːd͡ʒi] or اللهجة الخليجية el-lahja el-Khalijiyya local pronunciation: [elˈlɑhd͡ʒɐ lχɐˈliːd͡ʒɪjjɐ]) is a variety of the Arabic language spoken around the coast of the Persian Gulf in Kuwait, Iraq, Saudi Arabia, Bahrain, Qatar, the United Arab Emirates, Iran and Oman. These dialects are mutually intelligible at a high level, having few differences.
There are only 200,000 Gulf Arabic speakers in Saudi Arabia, mostly in the coastal Eastern Province. Gulf Arabic is distinct from Saudi Arabic. The vast majority of Saudi citizens speak Hejazi Arabic, Najdi Arabic and Bareqi Arabic dialects - which are not dialects of Gulf Arabic. The most spoken dialects in Saudi Arabia are Hejazi and Najdi. (Wikipedia)