The article explores the benefits, adoption barriers, and myths surrounding open data and open government. While many public organizations have embraced the idea of open data, there is still reluctance due to the shift from closed to open governance systems, which affects relationships between public agencies and data users. The study, based on interviews and a workshop, identifies the gap between the promised benefits and barriers of open data. It highlights five myths about open data, which are often used to justify or reject its use without factual basis. The research suggests that open data can enhance transparency, accountability, and public engagement, but its adoption faces challenges such as institutional resistance, task complexity, data quality, and legal issues. The study emphasizes the need for a user-centered approach and active governance to ensure open data is effectively utilized. It also notes that open data alone does not create value; it requires infrastructure and support to be useful. The article concludes that open data has the potential to transform governance, but its success depends on addressing barriers and ensuring that data is used in ways that benefit the public. The research underscores the importance of understanding the diverse nature of open data and the need for further study to fully realize its potential.The article explores the benefits, adoption barriers, and myths surrounding open data and open government. While many public organizations have embraced the idea of open data, there is still reluctance due to the shift from closed to open governance systems, which affects relationships between public agencies and data users. The study, based on interviews and a workshop, identifies the gap between the promised benefits and barriers of open data. It highlights five myths about open data, which are often used to justify or reject its use without factual basis. The research suggests that open data can enhance transparency, accountability, and public engagement, but its adoption faces challenges such as institutional resistance, task complexity, data quality, and legal issues. The study emphasizes the need for a user-centered approach and active governance to ensure open data is effectively utilized. It also notes that open data alone does not create value; it requires infrastructure and support to be useful. The article concludes that open data has the potential to transform governance, but its success depends on addressing barriers and ensuring that data is used in ways that benefit the public. The research underscores the importance of understanding the diverse nature of open data and the need for further study to fully realize its potential.