Background and aims The survey aimed to assess COVID-19 vaccine acceptance and hesitancy rate among patients with diabetes and address barriers and beliefs that affect acceptance to take COVID-19 vaccine. Methods A quantitative research approach with cross-sectional design was used to collect data from March–May’2021. Saudi residents with diabetes, aged ≥18 years were included. Results Of the total 709 participants, 42.2% had family member with COVID-19, 14.7% had COVID-19, 34.0% had been with someone who had COVID-19. 34.7% of participants taken COVID-19 vaccination, 36.2% were willing to take, while 79.0% supported COVID-19 vaccine. Main reasons behind uncertainties towards vaccinations were relatively fast production, not many trials done and about genetic component. 44.6% got information about COVID-19 and vaccination through television, social media, and ministry website. On adjusting models, female gender, longer duration of diabetes and no history of influenza vaccine significantly associated with COVID vaccine uptake. Conclusion Participants are willing to vaccinate but show some fear and misinformation. It is imperative that due efforts are made for increasing vaccine willingness, and availability of precise information holds key to success. Otherwise, state will have to continue to funnel in resources towards post-on-set disease management, consuming a lot more resources than preventive measures like vaccination.