This paper builds upon Eva Bellin’s theories of authoritarian resilience in the Middle East by incorporating the factor of selective immigration, especially in Gulf monarchies. Based on existing data and theoretical propositions by Bellin and others including R.P. Shaw, the paper argues that immigration policies reinforce regime stability in authoritarian states by creating religious homogeneity and expanding rentierism. This research uses Bahrain as a case study of this phenomenon and proposes three major hypotheses. First, Bahraini immigration policy towards foreign labor migrants positively impacts economic stability of the regime because labor migrants significantly contribute to the GDP of economic sectors in which Bahraini nationals are not highly involved. Second, Bahraini immigration policy towards Sunni Muslim foreigners positively impacts the religious authority of the regime because it consolidates power around the Sunni ruling family while simultaneously excluding Shi’as from society. Lastly, Bahraini immigration policy is more favorable towards migrants from countries with which the regime has strong political alliances because it maintains the status quo for Bahraini foreign relations. These hypotheses are examined through the use of secondary data compilations, namely the Central Informatics Organization (CIO) of the Kingdom of Bahrain. The CIO provides data points and statistics regarding ethnic composition of the Bahraini labor force, as well as breakdowns of economic sectors by concentration of foreign versus native workers. The Gulf Labor and Migration Markets project tracks the number of foreigners in Bahrain broken down by individual country of origin. The variety of data and research utilized approaches the question from multiple angles to understand the range of effects of immigration policy on Bahrain’s state interests. Ultimately, the research concludes that the first two hypotheses are sufficiently supported to corroborate the thesis, and while the third is weakly supported, the intervening variables exemplify the significance of labor migrants in Bahraini authoritarian exceptionalism.