Syria is one of many countries in the Middle East diverse in terms of religion, nationality, and ethnicity. Internal divisions emerged when Syria reclaimed independence in 1946, but the differences inside Syrian society have become a taboo. One of the reasons for that was Arab nationalism, which claimed that they were all Arabs. The Syrian authorities managed to maintain the appearance of national homogeneity owing to these claims. This article aims to show the uniqueness of Arab nationalism, which is not characteristic of one country but of numerous states sharing a common past, language, and their citizens belonging to the family of the Arab nation. As a case study for Syria, this article analyses the basic concepts relevant to the subject (nationalism, the nation from the perspective of Islam, and Arab thought), the roots of pan-Arabism in Syria and its presence in the public and legal space. It also attempts to demonstrate that Arab nationalism helped the Syrian authorities (represented by the Alawite minority) blur national, ethnic, and religious differences and thus preserve the unity of society and state.