The COVID-19 vaccination in Bulgaria is an immunization campaign currently taking place against SARS-CoV-2, the virus that is the cause of the COVID-19 disease. It began on 27 December 2020, in line with most other countries in the EU, and is in response to the ongoing pandemic in Bulgaria. The vaccination drive was affected by organizational and supply-related issues during the initial months while since the spring of 2021 vaccine hesitancy has contributed significantly to the country having the lowest rate of inoculations in the EU, with 35% of Bulgaria's adult citizens, and 30% of its eligible population, fully vaccinated by May 2022.
