Introduction: Coronavirus disease 2019 (COVID-19) pandemic hasn’t been managed and controlled effectively, globally. The aim of this systematic review was to determine Pro-vaccination attitude and associated factors towards COVID-19 vaccine among healthcare workers (HCWs) and nonhealthcare workers (non-HCWs).Methods: Different databases such as PsycINFO, HINARI, Cochrane Library, PubMed, EMBASE, African Journals OnLine, Web of Science, Scopus, and Google Scholar for the related articles. Result: The levels of positive attitude towards COVID-19 vaccine among HCWs was ranged from 21% to 95%. Factors significantly associated with the attitude towards COVID-19 vaccine among HCWs were such as age, gender, race, work experience, home location, having no fear of injections, being a non-smoker, profession, presence of chronic illnesses, allergies, confidence in pharmaceutical companies, history of taking influenza vaccine, vaccine recommendation, perceived risk of new vaccines, perceived utility of vaccine, receiving a seasonal flu vaccination in the last 5 years, working in a private hospital, a high perceived pandemic risk index, low vaccine harm index, high pro-socialness index, being in close contact with a high-risk group, knowledge about the virus, confidence in and expectations about personal protective equipment and behaviors. The levels of positive attitude towards COVID-19 vaccine among non-HCWs was ranged from 21.4% to 91.99%. Factors associated with the attitude towards COVID-19 vaccine among non-HCWs were such as age, gender, educational level, occupation, marital status, residency, income, ethnicity, risk for severe course of COVID-19, direct contact with COVID-19 at work, being a health profession, being vaccinated against seasonal flu, perceived benefits, cues to actions, having previous history of vaccination, fear of passing on the disease to relatives, and the year of medical study, studying health-related courses, COVID-19 concern, adherence level to social distancing guidelines, history of chronic disease, being pregnancy, perceived vaccine safety, having more information about vaccine effectiveness, mandatory vaccination, being recommended to be vaccinated, lack of the confidence in the healthcare system to control epidemic, and believe in COVID-19 vaccines protection from COVID-19 infection. Conclusion: The level of positive attitude towards COVID-19 vaccine among both HCWs and non-HCWs were unfavorable and comparable. Globally, there is a need for a call for action to cease the time and crisis of this pandemic.