Most people living in Southwest Asia are

Muslim.

This answer may vary as Southwest Asia comprises various countries, ethnicities, and religions. However, Islam is the predominant religion in many countries in Southwest Asia, such as Saudi Arabia, Iran, Iraq, Turkey, and the United Arab Emirates.

Most people living in Southwest Asia are ethnically and culturally diverse. Southwest Asia, also known as the Middle East, encompasses countries such as Saudi Arabia, Iraq, Iran, Israel, Turkey, and many others. The region is home to various ethnic groups, religions, and languages.

To determine the specific ethnic composition of the population in Southwest Asia, you can refer to demographic data provided by reliable sources such as government census data, international organizations like the United Nations, or academic research institutions. These sources compile and analyze data from population surveys and studies to provide an accurate representation of the population's ethnic composition.

It's important to note that ethnic diversity in Southwest Asia varies from country to country. For example, Saudi Arabia has a predominantly Arab population, while Iran has a Persian majority. Other ethnic groups in the region include Kurds, Turks, Jews, Assyrians, Armenians, Azeris, and many more.

To gain a comprehensive understanding of the ethnic composition in Southwest Asia, it is best to consult updated and reputable sources specific to the country or region you are interested in.

The most common ethnic group living in Southwest Asia is the Arabs. However, Southwest Asia is a diverse region with numerous ethnic groups. Other significant ethnic groups in the region include Kurds, Persians (Iranians), Turks, Jews, Assyrians, and many others. It is worth noting that the ethnic composition of Southwest Asia varies in different countries within the region.