Norovirus is a leading cause of acute gastroenteritis globally, contributing to significant morbidity, mortality, and economic losses in both high- and low-income countries. Although historically associated with travelers’ diarrhea, norovirus is now being recognized as a broader global health threat, with outbreaks occurring in a wide range of settings, including hospitals, cruise ships, schools, refugee camps, and communities. Its high infectivity, low infectious dose, and environmental persistence allow for rapid transmission across geographic and socioeconomic boundaries. While migrant and marginalized populations often bear a disproportionate burden due to barriers such as limited access to culturally competent care, fear of stigmatization, and exclusion from surveillance systems. Outbreaks are frequently accompanied by xenophobic narratives, which hinder effective response by fostering mistrust and delaying case reporting. This commentary underscores the need for multilingual public health messaging, migrant-inclusive surveillance, equitable infrastructure investment, and strengthened international cooperation. Reframing norovirus as a global, borderless health concern is essential for building resilient, inclusive systems capable of mitigating future outbreaks.