So who determines how many stars each hotel receives? In Europe, local government agencies and independent organizations hand out star ratings to hotels. In the U.S., stars are rewarded by a variety of different groups, from travel guidebooks and national consumer travel associations to travel agencies and websites.

There is no single global authority that decides hotel star ratings; instead, the system is a patchwork of government bodies, national tourism boards, and private organizations. In many European and Middle Eastern countries, the government or a semi-governmental tourism agency (like the Hotelstars Union in much of Europe) sets strict criteria for each star level. In the United Kingdom, organizations like The AA and VisitBritain conduct independent inspections. In the United States, the system is primarily driven by private industry, with Forbes Travel Guide (which uses a 1-to-5 star system) and AAA (which uses a 1-to-5 diamond system) being the most prestigious and rigorous evaluators. Furthermore, in the digital age of 2026, "social proof" via platforms like Google and TripAdvisor has created a parallel "user rating" system that many travelers find more relevant than official stars. This lack of a unified global standard explains why a "five-star" hotel in one country might only feel like a "three-star" property in another, as the requirements for things like 24-hour room service or pool size vary significantly between different rating bodies.