This scoping review examines the societal impact of Open Science (OS), including Citizen Science (CS), Open Access (OA), Open/FAIR Data (OFD), Open Code/Software, and Open Evaluation. The study systematically identified 196 studies that provide evidence of societal impact, with the majority focusing on CS. Key areas of impact include education and awareness, climate and environment, and social engagement. Limited evidence was found for impacts related to policy, health, and trust in academic research. The review highlights that CS has a significant impact on education, awareness, and environmental issues, while OA has a notable impact on public engagement and policy. However, there is limited evidence for the societal impact of OFD, Open Methods, and Open Evaluation. The study also notes that CS can lead to community development, activism, and empowerment, but there are challenges in integrating CS data into policy and governance. Overall, the findings suggest a need for more research to fully understand the societal impact of OS and to inform policy and practice.This scoping review examines the societal impact of Open Science (OS), including Citizen Science (CS), Open Access (OA), Open/FAIR Data (OFD), Open Code/Software, and Open Evaluation. The study systematically identified 196 studies that provide evidence of societal impact, with the majority focusing on CS. Key areas of impact include education and awareness, climate and environment, and social engagement. Limited evidence was found for impacts related to policy, health, and trust in academic research. The review highlights that CS has a significant impact on education, awareness, and environmental issues, while OA has a notable impact on public engagement and policy. However, there is limited evidence for the societal impact of OFD, Open Methods, and Open Evaluation. The study also notes that CS can lead to community development, activism, and empowerment, but there are challenges in integrating CS data into policy and governance. Overall, the findings suggest a need for more research to fully understand the societal impact of OS and to inform policy and practice.